APA (7th ed.) Citation

Culbertson, R. L. (1974). Easier way to diagram air control systems. Automation (1954)., 21, 77.

Chicago Style (17th ed.) Citation

Culbertson, R. L. "Easier Way to Diagram Air Control Systems." Automation (1954). 21 (1974): 77.

MLA (9th ed.) Citation

Culbertson, R. L. "Easier Way to Diagram Air Control Systems." Automation (1954)., vol. 21, 1974, p. 77.