एपीए उद्धरण

International labour office, Geneva. (1979). Trade unions and the ILO.

शिकागो स्टाइल उद्धरण

International labour office, Geneva. Trade Unions and the ILO. 1979.

एमएलए उद्धरण

International labour office, Geneva. Trade Unions and the ILO. 1979.