APA Edition Citation

Leeson, D. N. (1968). Basic programming concepts and the IBM 1620 computer (2nd ed.).

Chicago Edition Citation

Leeson, Daniel N. Basic Programming Concepts and the IBM 1620 Computer. 2nd ed. 1968.

MLA Edition Citation

Leeson, Daniel N. Basic Programming Concepts and the IBM 1620 Computer. 2nd ed. 1968.

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