APA (7th ed.) Citation

Hook, J. N., & Crowell, M. G. (1970). Modern English grammar for teachers. Ronald Press.

Chicago Style (17th ed.) Citation

Hook, J. N., and Michael G. Crowell. Modern English Grammar for Teachers. New York: Ronald Press, 1970.

MLA (8th ed.) Citation

Hook, J. N., and Michael G. Crowell. Modern English Grammar for Teachers. Ronald Press, 1970.