属性

数据类型ID

必须?Optional

Codes (8)

• XEquivalent Item Substitution
• YAlternate Item Substitution Allowed
• B0No Substitution Allowed
• B1Supply any Binding if Edition Ordered Not Available
• B2Supply Paper Binding if Edition Ordered Not Available
• B3Supply Cloth Binding if Edition Ordered Not Available
• B4Supply Library Binding if Edition Ordered Not Available
• ZZMutually Defined