Παραπομπή APA

Goetsch. (2010). Occupational saftey & health for techn. Pearson.

Παραπομπή Chicago Style

Goetsch. Occupational Saftey & Health for Techn. Pearson, 2010.

Παραπομπή MLA

Goetsch. Occupational Saftey & Health for Techn. Pearson, 2010.