Παραπομπή APA

Goel, B. S. . .. (2001). Operations research. Pragati Prakashan.

Παραπομπή Chicago Style

Goel, B S. Operations Research. Meerut: Pragati Prakashan, 2001.

Παραπομπή MLA

Goel, B S. Operations Research. Pragati Prakashan, 2001.