Cita APA (7a ed.)
Honsberger, R. (1970). Ingenuity in mathematics. Mathematical Association of America.
Cita Chicago Style (17a ed.)
Honsberger, Ross. Ingenuity in Mathematics. Washington, DC: Mathematical Association of America, 1970.
Cita MLA (9a ed.)
Honsberger, Ross. Ingenuity in Mathematics. Mathematical Association of America, 1970.
Precaución: Estas citas no son 100% exactas.