List24

<xs:simpleType name="List24">
  <xs:annotation>
    <xs:documentation source="ONIX Code List 24">Extent unit code</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:string">
    <xs:enumeration value="02">
      <xs:annotation>
        <xs:documentation>Words</xs:documentation>
        <xs:documentation>Words of natural language text</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="03">
      <xs:annotation>
        <xs:documentation>Pages</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="04">
      <xs:annotation>
        <xs:documentation>Hours (integer and decimals)</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="05">
      <xs:annotation>
        <xs:documentation>Minutes (integer and decimals)</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="06">
      <xs:annotation>
        <xs:documentation>Seconds (integer only)</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="11">
      <xs:annotation>
        <xs:documentation>Tracks</xs:documentation>
        <xs:documentation>Of an audiobook on CD (or a similarly divided selection of audio files). Conventionally, each track is 3–6 minutes of running time, and track counts are misleading and inappropriate if the average track duration is significantly more or less than this. Note that track breaks are not necessarily aligned with structural breaks in the text (eg chapter breaks)</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="14">
      <xs:annotation>
        <xs:documentation>Hours HHH</xs:documentation>
        <xs:documentation>Fill with leading zeroes if any elements are missing</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="15">
      <xs:annotation>
        <xs:documentation>Hours and minutes HHHMM</xs:documentation>
        <xs:documentation>Fill with leading zeroes if any elements are missing</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="16">
      <xs:annotation>
        <xs:documentation>Hours minutes seconds HHHMMSS</xs:documentation>
        <xs:documentation>Fill with leading zeroes if any elements are missing</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="17">
      <xs:annotation>
        <xs:documentation>Bytes</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="18">
      <xs:annotation>
        <xs:documentation>Kbytes</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="19">
      <xs:annotation>
        <xs:documentation>Mbytes</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>