APA (7th ed.) Citation

Cowan, G., McPherson, E. j. a., & Leggett, G. j. a. (1966). Plain english please. Random House.

Chicago Style (17th ed.) Citation

Cowan, Gregory, Elisabeth joint author McPherson, and Glenn joint author Leggett. Plain English Please. New York: Random House, 1966.

MLA (9th ed.) Citation

Cowan, Gregory, et al. Plain English Please. Random House, 1966.