APA

Butler N. M., . (1942). Liberty, equality, fraternity: essays and addresses on the problems of today and tomorrow. New York: C. Scribner's Sons.

Chicago

Butler Nicholas Murray, . 1942. Liberty, equality, fraternity: essays and addresses on the problems of today and tomorrow. New York: C. Scribner's Sons.

Harvard

Butler N. M., . (1942). Liberty, equality, fraternity: essays and addresses on the problems of today and tomorrow. New York: C. Scribner's Sons.

MLA

Butler Nicholas Murray, . Liberty, equality, fraternity: essays and addresses on the problems of today and tomorrow. New York: C. Scribner's Sons. 1942.