Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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