Cita APA (7a ed.)

Stevick, E. W. (1957). Helping People Learn English: A manual for Teachers of English as a second language. Abingdon Press.

Cita Chicago Style (17a ed.)

Stevick, Earl W. Helping People Learn English: A Manual for Teachers of English as a Second Language. New York, Estados Unidos: Abingdon Press, 1957.

Cita MLA (9a ed.)

Stevick, Earl W. Helping People Learn English: A Manual for Teachers of English as a Second Language. Abingdon Press, 1957.