APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Language, Ethnicity and Intergroup Relations. London [u.a.]: Academic Press, 1977.

MLA (9th ed.) Citation

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

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