APA (7th ed.) Citation

Gregersen, E. (1977). Language in Africa: An introductory survey. Gordon and Breach.

Chicago Style (17th ed.) Citation

Gregersen, Edgar. Language in Africa: An Introductory Survey. New York: Gordon and Breach, 1977.

MLA (9th ed.) Citation

Gregersen, Edgar. Language in Africa: An Introductory Survey. Gordon and Breach, 1977.

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