Παραπομπή APA

National productivity council. (1962). Sugar industry in philippines, Hawai, USA and Puerto Rico. National productivity council.

Παραπομπή Chicago Style

National productivity council. Sugar Industry in Philippines, Hawai, USA and Puerto Rico. New Delhi: National productivity council, 1962.

Παραπομπή MLA

National productivity council. Sugar Industry in Philippines, Hawai, USA and Puerto Rico. National productivity council, 1962.