Cita APA (7a ed.)

Gaskins, T. (1992). PHIGS programming manual. O'Reilly.

Cita Chicago Style (17a ed.)

Gaskins, Tom. PHIGS Programming Manual. Sebastopol, California: O'Reilly, 1992.

Cita MLA (9a ed.)

Gaskins, Tom. PHIGS Programming Manual. O'Reilly, 1992.