Fisher, D. C. (1949). Four-square. Harcourt, Brace and Company.
Cita Chicago Style (17a ed.)Fisher, Dorothy Canfield. Four-square. New York: Harcourt, Brace and Company, 1949.
Cita MLA (9a ed.)Fisher, Dorothy Canfield. Four-square. Harcourt, Brace and Company, 1949.
Precaución: Estas citas no son 100% exactas.