APA (7th ed.) Citation

Libbish, B., & Mathieu, G. (1964). Advances in the teaching of modern languages.

Chicago Style (17th ed.) Citation

Libbish, B., and Gustave Mathieu. Advances in the Teaching of Modern Languages. 1964.

MLA (9th ed.) Citation

Libbish, B., and Gustave Mathieu. Advances in the Teaching of Modern Languages. 1964.

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