Παραπομπή APA

Barthwal, R. (1984). Industrial economics: An introductory text book. Wiley eastern.

Παραπομπή Chicago Style

Barthwal, R.R. Industrial Economics: An Introductory Text Book. Ndw Delhi: Wiley eastern, 1984.

Παραπομπή MLA

Barthwal, R.R. Industrial Economics: An Introductory Text Book. Wiley eastern, 1984.