Gaya APA

Professional computer:user's guide. (). [s.n.]: [s.l.].

Gaya Chicago

Professional computer:user's guide. . [s.n.]: [s.l.], . .

Gaya MLA

Professional computer:user's guide. . [s.n.]: [s.l.], . .

Gaya Turabian

Professional computer:user's guide. [s.n.]: [s.l.], . .