Cita APA (7th ed.)

Eck, R. D. (1976). Operations research for business. Wadsworth.

Cita Chicago (17th ed.)

Eck, Roger D. Operations Research for Business. Belmont: Wadsworth, 1976.

Cita MLA (9th ed.)

Eck, Roger D. Operations Research for Business. Wadsworth, 1976.