Παραπομπή APA

Varma, O., & Ahuja B.N. Text book of industrial economics. Careers digest publications.

Παραπομπή Chicago Style

Varma, O.P, και Ahuja B.N. Text Book of Industrial Economics. Delhi: Careers digest publications.

Παραπομπή MLA

Varma, O.P, και Ahuja B.N. Text Book of Industrial Economics. Careers digest publications.