APA (7th ed.) Citation

Ludlow, C. L., & Cooper, J. A. (1983). Genetic aspects of speech and language disorders. Academic Press.

Chicago Style (17th ed.) Citation

Ludlow, Christy L., and Judith A. Cooper. Genetic Aspects of Speech and Language Disorders. New York: Academic Press, 1983.

MLA (9th ed.) Citation

Ludlow, Christy L., and Judith A. Cooper. Genetic Aspects of Speech and Language Disorders. Academic Press, 1983.