एपीए उद्धरण

National productivity council. Foundary industry in Sweden, USA and Japan. National productivity council.

शिकागो स्टाइल उद्धरण

National productivity council. Foundary Industry in Sweden, USA and Japan. New Delhi: National productivity council.

एमएलए उद्धरण

National productivity council. Foundary Industry in Sweden, USA and Japan. National productivity council.