Trích dẫn APA

Friendrich, C. J. (1963). Man and his government: An empirical theory of politics. New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Friendrich, Carl Joachim. Man and His Government: An Empirical Theory of Politics. New York: McGraw-Hill, 1963.

Trích dẫn MLA

Friendrich, Carl Joachim. Man and His Government: An Empirical Theory of Politics. New York: McGraw-Hill, 1963.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.