Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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