Watkins, F. C., Dillingham, W. B., & Martin, E. T. (1974). Practical English handbook (4th ed.). Houghton Mifflin Co..
Chicago Style (17th ed.) CitationWatkins, Floyd C., William B. Dillingham, and Edwin Thomas Martin. Practical English Handbook. 4th ed. Boston: Houghton Mifflin Co., 1974.
MLA (9th ed.) CitationWatkins, Floyd C., et al. Practical English Handbook. 4th ed. Houghton Mifflin Co., 1974.