Cita APA (7a ed.)

Witts, L. J. (1964). Medical surveys and clinical trials: Some methods and applications of group research in medicine (2a. ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Witts, L. J. Medical Surveys and Clinical Trials: Some Methods and Applications of Group Research in Medicine. 2a. ed. London: Oxford University Press, 1964.

Cita MLA (9a ed.)

Witts, L. J. Medical Surveys and Clinical Trials: Some Methods and Applications of Group Research in Medicine. 2a. ed. Oxford University Press, 1964.