Cita APA

Hopper, V. F., ...,, C.foote, R., & Gale, C. (1990). Essentials of English. New York: Barron.

Chicago Style Citation

Hopper, Vincent F., ..., Ronald C.foote, i Cedric Gale. Essentials of English. New York: Barron, 1990.

Cita MLA

Hopper, Vincent F., ..., Ronald C.foote, i Cedric Gale. Essentials of English. New York: Barron, 1990.