Παραπομπή APA

Chopra, P. N. (1998). Micro economics. Kalyani.

Παραπομπή Chicago Style

Chopra, P. N. Micro Economics. Ludhiana: Kalyani, 1998.

Παραπομπή MLA

Chopra, P. N. Micro Economics. Kalyani, 1998.