APA način citiranja

Buckley, E. A. (1961). How to increase sales with letters. McGraw Hill.

Čikaški stil citiranja

Buckley, Earle A. How to Increase Sales with Letters. McGraw Hill, 1961.

MLA način citiranja

Buckley, Earle A. How to Increase Sales with Letters. McGraw Hill, 1961.

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