APA (7e ed.) Bronvermelding

Bill, J. A., & Hardgrave, R. L. (1973). Comparative politics: The quest for theory. Charles E. Merrill.

Chicago (17e ed.) Bronvermelding

Bill, James A., en Robert L. Hardgrave. Comparative Politics: The Quest for Theory. Columbus, Ohio: Charles E. Merrill, 1973.

MLA (9e ed.) Bronvermelding

Bill, James A., en Robert L. Hardgrave. Comparative Politics: The Quest for Theory. Charles E. Merrill, 1973.