एपीए उद्धरण

B E S, T. (1978). Fact Book on Basic Materials, Production Employment, Capital etc 1973 - 74. B E S.

शिकागो स्टाइल उद्धरण

B E S, TVM. Fact Book on Basic Materials, Production Employment, Capital Etc 1973 - 74. TVM: B E S, 1978.

एमएलए उद्धरण

B E S, TVM. Fact Book on Basic Materials, Production Employment, Capital Etc 1973 - 74. B E S, 1978.