Cita APA (7th ed.)
Hutchins, R. M., & Adler, M. J. (1963). Gateway to the great books.: Vol.4: mathematic. Encyclopedia Britannica, Inc..
Cita Chicago (17th ed.)
Hutchins, Robert M., i Mortimer J. Adler. Gateway to the Great Books.: Vol.4: Mathematic. Chicago: Encyclopedia Britannica, Inc., 1963.
Cita MLA (9th ed.)
Hutchins, Robert M., i Mortimer J. Adler. Gateway to the Great Books.: Vol.4: Mathematic. Encyclopedia Britannica, Inc., 1963.
Atenció: Aquestes cites poden no estar 100% correctes.