(1973). Modern Trigonometry. Houghton Mifflin Company.
Cita Chicago Style (17a ed.)Modern Trigonometry. Boston: Houghton Mifflin Company, 1973.
Cita MLA (9a ed.)Modern Trigonometry. Houghton Mifflin Company, 1973.
Precaución: Estas citas no son 100% exactas.