APA Citation

Hall, R. A. (1973). New ways to learn a foreign language. [Lugar de publicación no identificado]: Spoken Language Services.

Chicago Style Citation

Hall, Robert Anderson. New Ways to Learn a Foreign Language. [Lugar de publicación no identificado]: Spoken Language Services, 1973.

MLA Citation

Hall, Robert Anderson. New Ways to Learn a Foreign Language. [Lugar de publicación no identificado]: Spoken Language Services, 1973.

Warning: These citations may not always be 100% accurate.