List57

<xs:simpleType name="List57">
  <xs:annotation>
    <xs:documentation source="ONIX Code List 57">Unpriced item type code</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:string">
    <xs:enumeration value="01">
      <xs:annotation>
        <xs:documentation>Free of charge</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="02">
      <xs:annotation>
        <xs:documentation>Price to be announced</xs:documentation>
        <xs:documentation/>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="03">
      <xs:annotation>
        <xs:documentation>Not sold separately</xs:documentation>
        <xs:documentation>Not sold separately at retail</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="04">
      <xs:annotation>
        <xs:documentation>Contact supplier</xs:documentation>
        <xs:documentation>May be used for books that do not carry a recommended retail price; when goods can only be ordered ‘in person’ from a sales representative; when an ONIX file is ‘broadcast’ rather than sent one-to-one to a single trading partner; or for digital products offered on subscription or with pricing which is too complex to specify in ONIX</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="05">
      <xs:annotation>
        <xs:documentation>Not sold as set</xs:documentation>
        <xs:documentation>When a collection that is not sold as a set nevertheless has its own ONIX record</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="06">
      <xs:annotation>
        <xs:documentation>Revenue share</xs:documentation>
        <xs:documentation>Unpriced, but available via a pre-determined revenue share agreement</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>