Cita APA (7a ed.)

Gruenberger, F. J., & Jaffray, G. (1966). Problems for computer solution (2nd print. ed.). [S.n.].

Cita Chicago Style (17a ed.)

Gruenberger, Fred Joseph, y George Jaffray. Problems for Computer Solution. 2nd print. ed. Nueva York: [S.n.], 1966.

Cita MLA (9a ed.)

Gruenberger, Fred Joseph, y George Jaffray. Problems for Computer Solution. 2nd print. ed. [S.n.], 1966.