एपीए उद्धरण

India. Central Statistical Organisation. (1976). Annual survey of industries 1968. Central Statistical Organisation.

शिकागो स्टाइल उद्धरण

India. Central Statistical Organisation. Annual Survey of Industries 1968. Calcutta: Central Statistical Organisation, 1976.

एमएलए उद्धरण

India. Central Statistical Organisation. Annual Survey of Industries 1968. Central Statistical Organisation, 1976.