APA (7th ed.) Citation

Graff, W. L. (1932). Language and languages: An introduction to linguistics. D. Appleton and company.

Chicago Style (17th ed.) Citation

Graff, Willem Laurens. Language and Languages: An Introduction to Linguistics. New York, London: D. Appleton and company, 1932.

MLA (9th ed.) Citation

Graff, Willem Laurens. Language and Languages: An Introduction to Linguistics. D. Appleton and company, 1932.

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