APA način citiranja

(1991). Reference and information services: An introduction. Englewood, Colorado: Libraries Unlimited, Inc.

Čikaški stil citiranja

Reference and Information Services: An Introduction. Englewood, Colorado: Libraries Unlimited, Inc, 1991.

MLA način citiranja

Reference and Information Services: An Introduction. Englewood, Colorado: Libraries Unlimited, Inc, 1991.

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