Cita APA (7a ed.)

Giffin, W. C. (1971). Introduction to operations engineering. Richard D. Irwin.

Cita Chicago Style (17a ed.)

Giffin, Walter C. Introduction to Operations Engineering. Homewood (Illinois): Richard D. Irwin, 1971.

Cita MLA (9a ed.)

Giffin, Walter C. Introduction to Operations Engineering. Richard D. Irwin, 1971.