Tan, V. A., & Perez, F. (1957). Plane and spherical trigonometry with solid geometry (Engineering ed. rev.). Macaraig Publishing Co.
Chicago Style (17. basım) AtıfTan, Vidal A., ve Francisco Perez. Plane and Spherical Trigonometry with Solid Geometry. Engineering ed. rev. Manila: Macaraig Publishing Co, 1957.
MLA (9th ed.) AtıfTan, Vidal A., ve Francisco Perez. Plane and Spherical Trigonometry with Solid Geometry. Engineering ed. rev. Macaraig Publishing Co, 1957.
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