Παραπομπή APA

Cohen, S. M. (2010). Keeping current: Advanced internet strategies to meet librarian and patron needs. Ess Ess.

Παραπομπή Chicago Style

Cohen, Steven M. Keeping Current: Advanced Internet Strategies to Meet Librarian and Patron Needs. New Delhi: Ess Ess, 2010.

Παραπομπή MLA

Cohen, Steven M. Keeping Current: Advanced Internet Strategies to Meet Librarian and Patron Needs. Ess Ess, 2010.