APA (7th ed.) Citation

Roberts, G. K. (1972). What is comparative politics? MacMillan.

Chicago Style (17th ed.) Citation

Roberts, Geoffrey K. What Is Comparative Politics? London [etc.]: MacMillan, 1972.

MLA (9th ed.) Citation

Roberts, Geoffrey K. What Is Comparative Politics? MacMillan, 1972.

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