Sheldon, W. H., Hartl, E. M., & McDermott, E. (1949). Varieties of delinquent youth; an introduction to constitutional psychiatry. Harper.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheldon, William Herbert, Emil M. Hartl, और Eugene McDermott. Varieties of Delinquent Youth; an Introduction to Constitutional Psychiatry. New York: Harper, 1949.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSheldon, William Herbert, et al. Varieties of Delinquent Youth; an Introduction to Constitutional Psychiatry. Harper, 1949.
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