Resource Identifiers (0xx fields) (RDA 2.15)

Identifiers for a manifestation

010 890456389

010 2001236489

020 ISBN ǂq (pb, hc, etc. if more than one found)

020 ǂz for an invalid ISBN number

024 1_ 639277552693

024 3_ 2639267552982 (13 digit EAN number)

No need to code the 024 field if numbers are identical to the ISBN