APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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