APA aipamena

Hopkins, C. H. (1951). History of the Y.M.C.A. in North America. Association Press.

Chicago Style aipamena

Hopkins, Charles Howard. History of the Y.M.C.A. in North America. New York: Association Press, 1951.

MLA aipamena

Hopkins, Charles Howard. History of the Y.M.C.A. in North America. Association Press, 1951.