एपीए उद्धरण

Pethybridge, R. (1972). The Spread of the Russian Revolution: Essays on 1917. Macmillan.

शिकागो स्टाइल उद्धरण

Pethybridge, Roger. The Spread of the Russian Revolution: Essays on 1917. London: Macmillan, 1972.

एमएलए उद्धरण

Pethybridge, Roger. The Spread of the Russian Revolution: Essays on 1917. Macmillan, 1972.