APA (7e ed.) Bronvermelding

Gullette, G. A., & McCrimmon, J. M. (1941). Writing effectively: An introduction to the elements of grammar, composition, and usage, with graded exercises. Farrar & Rinehart, Inc.

Chicago (17e ed.) Bronvermelding

Gullette, George A., en James McNab McCrimmon. Writing Effectively: An Introduction to the Elements of Grammar, Composition, and Usage, with Graded Exercises. New York: Farrar & Rinehart, Inc, 1941.

MLA (8e ed.) Bronvermelding

Gullette, George A., en James McNab McCrimmon. Writing Effectively: An Introduction to the Elements of Grammar, Composition, and Usage, with Graded Exercises. Farrar & Rinehart, Inc, 1941.