NLC receives reports for duplicate records authenticated with either of the following authentication codes, including combinations of the codes:

042 nlc

042 isis/c

Address report forms to:

CONSER Serials and Special Materials Cataloguing Division

Acquisitions & Bibliographic Services Branch

National Library of Canada

395 Wellington Street

Ottawa, Ontario K1A 0N4

Canada

See also:

C7.4. Reporting Duplicate Records