Heineman, E. R. (1956). Plane Trigonometry. New York: Mcgraw-Hill Book Company,ING.
Citación estilo ChicagoHeineman, E. Richard. Plane Trigonometry. New York: Mcgraw-Hill Book Company,ING, 1956.
Cita MLAHeineman, E. Richard. Plane Trigonometry. New York: Mcgraw-Hill Book Company,ING, 1956.
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