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 Herbert, Emil M. Hartl, and Eugene McDermott. Varieties of Delinquent Youth; an Introduction to Constitutional Psychiatry. New York: Harper, 1949.

MLA (9th ed.) Citation

Sheldon, William Herbert, et al. Varieties of Delinquent Youth; an Introduction to Constitutional Psychiatry. Harper, 1949.