APA (7th ed.) Citation

Watkins, F. C., & Martin, E. T. (1961). Practical English handbook (Instructor's ed.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

Watkins, Floyd C., and Edwin Thomas Martin. Practical English Handbook. Instructor's ed. Boston: Houghton Mifflin, 1961.

MLA (9th ed.) Citation

Watkins, Floyd C., and Edwin Thomas Martin. Practical English Handbook. Instructor's ed. Houghton Mifflin, 1961.