Não informado. (1999). PC Week. Ziff-Davis Publishing.
Style de citation Chicago (17e éd.)Não informado. PC Week. New York: Ziff-Davis Publishing, 1999.
Style de citation MLA (8e éd.)Não informado. PC Week. Ziff-Davis Publishing, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.