एपीए उद्धरण

Howells, J. G. (1975). Modern perspectives in the psychiatry of old age. Churchil Livingston.

शिकागो स्टाइल उद्धरण

Howells, John G. Modern Perspectives in the Psychiatry of Old Age. London: Churchil Livingston, 1975.

एमएलए उद्धरण

Howells, John G. Modern Perspectives in the Psychiatry of Old Age. Churchil Livingston, 1975.