APA (7th ed.) Citation

Sharp, R. A., & Cowan, E. M. (1937). Sharp's useful English: Book I. Webster Pub. Co..

Chicago Style (17th ed.) Citation

Sharp, Russell A., and Esther M. Cowan. Sharp's Useful English: Book I. St. Louis: Webster Pub. Co., 1937.

MLA (8th ed.) Citation

Sharp, Russell A., and Esther M. Cowan. Sharp's Useful English: Book I. Webster Pub. Co., 1937.