APA (7th ed.) Citation

Perrin, P. G., Dykema, K. W., & Ebbitt, W. R. (1965). Writer's guide and index to English. Scott, Foresman.

Chicago Style (17th ed.) Citation

Perrin, Porter Gale, Karl W. Dykema, and Wilma R. Ebbitt. Writer's Guide and Index to English. Chicago: Scott, Foresman, 1965.

MLA (9th ed.) Citation

Perrin, Porter Gale, et al. Writer's Guide and Index to English. Scott, Foresman, 1965.