Trigonometry : plane and spherical. /
Trigonometry : plane and spherical. / Epifanio N. Salumbides, Rufo C. Romero. -- - Revised edition. -- - Quezon City : Royal Publishing House, Inc., 1963. - 102 pages : 22 cm
Include index.
9718609008
Trigonometry, Plane.
Trigonometry, Spherical.
QA531 / .S25 1963