APA (7th ed.) Citation

Langley, M. H. (1974). A calculus of delinquency. Univ. Microfilms.

Chicago Style (17th ed.) Citation

Langley, Michael Hogan. A Calculus of Delinquency. Ann Arbor, Mich: Univ. Microfilms, 1974.

MLA (8th ed.) Citation

Langley, Michael Hogan. A Calculus of Delinquency. Univ. Microfilms, 1974.