एपीए उद्धरण

(1990). The Soviet Union: A systematic geography. London: Hodder and Houghton.

शिकागो स्टाइल उद्धरण

The Soviet Union: A Systematic Geography. London: Hodder and Houghton, 1990.

एमएलए उद्धरण

The Soviet Union: A Systematic Geography. London: Hodder and Houghton, 1990.