APA (7th ed.) Citation

Van Tassel, D. (1980). Introductory COBOL. Holden-Day.

Chicago Style (17th ed.) Citation

Van Tassel, Dennie. Introductory COBOL. San Francisco: Holden-Day, 1980.

MLA (9th ed.) Citation

Van Tassel, Dennie. Introductory COBOL. Holden-Day, 1980.

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