Παραπομπή APA

Narasimha Rao,, P. (2003). Economics efficiancy and farm machanisation. Serials.

Παραπομπή Chicago Style

Narasimha Rao,, P. Economics Efficiancy and Farm Machanisation. New Delhi: Serials, 2003.

Παραπομπή MLA

Narasimha Rao,, P. Economics Efficiancy and Farm Machanisation. Serials, 2003.