National bibliographic agency:

Code # (008/39 - all materials) indicates that a national bibliographic agency (e.g., U.S. Library of Congress or National Library of Canada) is the creator of the original cataloging data.

Examples:

008/39 #

040 ##$aDLC$cDLC

[Record was created and transcribed by the U.S. Library of Congress.]

008/39 #

040 ##$aDLC$cWvU$dWvU$dCU$dCStRLIN

[Record was created by the Library of Congress, transcribed by West Virginia University, and modified by West Virginia University, University of California, and RLIN.]

008/39 #

040 ##$aCaOONL$cCaOONL

[Record was created and transcribed by the National Library of Canada.]