Παραπομπή APA

Barthwal, R. R. (2010). Industrial economics: :an introductory textbook. New age International.

Παραπομπή Chicago Style

Barthwal, R R. Industrial Economics: :an Introductory Textbook. New Delhi: New age International, 2010.

Παραπομπή MLA

Barthwal, R R. Industrial Economics: :an Introductory Textbook. New age International, 2010.