Style de citation APA

Bernard, D. (1977). Charging For Computer Services: Principles and Guidelines. Petrocell.

Style de citation Chicago

Bernard, Dan. Charging For Computer Services: Principles and Guidelines. New York: Petrocell, 1977.

Style de citation MLA

Bernard, Dan. Charging For Computer Services: Principles and Guidelines. Petrocell, 1977.

Attention : ces citations peuvent ne pas être correctes à 100%.