The New Plane Trigonometry /
Puzon, Aurora., et.al., c1980.
The New Plane Trigonometry / Puzon, Aurora., et.al. - Philippines : Saint Mary's Publishing, c1980. - 323p. : illus. ; 21 cm.
The New Plane Trigonometry / Puzon, Aurora., et.al. - Philippines : Saint Mary's Publishing, c1980. - 323p. : illus. ; 21 cm.