Παραπομπή APA

Verma,A P. (2004). Operations research (3.). S.K Kataria and Sons.

Παραπομπή Chicago Style

Verma,A P. Operations Research. 3. New Delhi: S.K Kataria and Sons, 2004.

Παραπομπή MLA

Verma,A P. Operations Research. 3. S.K Kataria and Sons, 2004.