APA (7th ed.) Citation

Giles, H. (1977). Language, ethnicity, and intergroup relations. Academic Press.

Chicago Style (17th ed.) Citation

Giles, Howard. Language, Ethnicity, and Intergroup Relations. London: Academic Press, 1977.

MLA (9th ed.) Citation

Giles, Howard. Language, Ethnicity, and Intergroup Relations. Academic Press, 1977.

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