APA-viite (7. p.)

Collier, D. (2016). Operations Management (OM). Cengage Learning.

Chicago-viite (17. p.)

Collier, David. Operations Management (OM). NEw Delhi: Cengage Learning, 2016.

MLA-viite (9. p.)

Collier, David. Operations Management (OM). Cengage Learning, 2016.