APA (7th ed.) Citation

Garson, G. D. (1978). Group theories of politics. Sage Pub.

Chicago Style (17th ed.) Citation

Garson, G. David. Group Theories of Politics. Beverly Hill, Calif: Sage Pub, 1978.

MLA (9th ed.) Citation

Garson, G. David. Group Theories of Politics. Sage Pub, 1978.