Cita APA (7th ed.)

Hall, R. A. (1973). New ways to learn a foreign language. Spoken Language Services.

Cita Chicago (17th ed.)

Hall, Robert Anderson. New Ways to Learn a Foreign Language. [Ithaca, N.Y.]: Spoken Language Services, 1973.

Cita MLA (9th ed.)

Hall, Robert Anderson. New Ways to Learn a Foreign Language. Spoken Language Services, 1973.