Gaya APA

Systems and Programming Standars. (1977). New York: Petrocelli.

Gaya Chicago

Systems and Programming Standars. . New York: Petrocelli, 1977. .

Gaya MLA

Systems and Programming Standars. . New York: Petrocelli, 1977. .

Gaya Turabian

Systems and Programming Standars. New York: Petrocelli, 1977. .