APA (7th ed.) Citation

Sheldon, W. H., Hartl, E. M., & McDermott, E. (1949). Varieties of delinquent youth: An introduction to constitutional psychiatry. Harper.

Chicago Style (17th ed.) Citation

Sheldon, William H., Emil M. Hartl, and Eugene McDermott. Varieties of Delinquent Youth: An Introduction to Constitutional Psychiatry. New York: Harper, 1949.

MLA (8th ed.) Citation

Sheldon, William H., et al. Varieties of Delinquent Youth: An Introduction to Constitutional Psychiatry. Harper, 1949.