Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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