APA (7th ed.) Citation

Craig, G. D., Hutson, A. E., & Montgomery, G. (1941). The essentials of English grammar. Crofts.

Chicago Style (17th ed.) Citation

Craig, George Dundas, Arthur E. Hutson, and Guy Montgomery. The Essentials of English Grammar. New York: Crofts, 1941.

MLA (9th ed.) Citation

Craig, George Dundas, et al. The Essentials of English Grammar. Crofts, 1941.