एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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