APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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