Cita APA (7a ed.)

Watkins, F. C. (1982). Practical english handbook. Houghton Mifflin Company.

Cita Chicago Style (17a ed.)

Watkins, Floyd C. Practical English Handbook. Boston: Houghton Mifflin Company, 1982.

Cita MLA (9a ed.)

Watkins, Floyd C. Practical English Handbook. Houghton Mifflin Company, 1982.