एपीए उद्धरण

Levinson, C. (1972). International trade unionism. George Allen & Unwin Ltd.

शिकागो स्टाइल उद्धरण

Levinson, Charles. International Trade Unionism. London: George Allen & Unwin Ltd, 1972.

एमएलए उद्धरण

Levinson, Charles. International Trade Unionism. George Allen & Unwin Ltd, 1972.