APA (7th ed.) Citation

(1972). Infosystems. [Hitchcock Pub. Co.,].

Chicago Style (17th ed.) Citation

Infosystems. [Elmhurst, Ill.]: [Hitchcock Pub. Co.,], 1972.

MLA (9th ed.) Citation

Infosystems. [Hitchcock Pub. Co.,], 1972.

Warning: These citations may not always be 100% accurate.