APA (7th ed.) Citation

Cowie, J., Cowie, V., & Slater, E. (1968). Delinquency in girls. Humanities Press.

Chicago Style (17th ed.) Citation

Cowie, John, Valerie Cowie, and Eliot Slater. Delinquency in Girls. USA: Humanities Press, 1968.

MLA (9th ed.) Citation

Cowie, John, et al. Delinquency in Girls. Humanities Press, 1968.