एपीए उद्धरण

Singh, L. (1981). New perspectives in geography. Thinker's Library.

शिकागो स्टाइल उद्धरण

Singh, L.R. New Perspectives in Geography. Allahabad: Thinker's Library, 1981.

एमएलए उद्धरण

Singh, L.R. New Perspectives in Geography. Thinker's Library, 1981.