Παραπομπή APA

Lenk, J. D. (1980). Handbook of controls and instrumentation. Prentice-Hall of India.

Παραπομπή Chicago Style

Lenk, John D. Handbook of Controls and Instrumentation. New Jersey: Prentice-Hall of India, 1980.

Παραπομπή MLA

Lenk, John D. Handbook of Controls and Instrumentation. Prentice-Hall of India, 1980.