APA (7th ed.) Citation

Gear, C. W. (1973). Introduction to computer science. Science Research Assoc.

Chicago Style (17th ed.) Citation

Gear, C. William. Introduction to Computer Science. Chicago [u.a.]: Science Research Assoc, 1973.

MLA (9th ed.) Citation

Gear, C. William. Introduction to Computer Science. Science Research Assoc, 1973.