APA (7th ed.) Citation

Dunbar, G., Dunbar, C., & Rorabacher, L. E. (1991). Assignments in exposition. Harper Collins.

Chicago Style (17th ed.) Citation

Dunbar, Georgia, Clement Dunbar, and Louise Elizabeth Rorabacher. Assignments in Exposition. New York, N. Y: Harper Collins, 1991.

MLA (9th ed.) Citation

Dunbar, Georgia, et al. Assignments in Exposition. Harper Collins, 1991.