Plane trigonometry. /
Lumabas, Regelio S.
Plane trigonometry. / Rogelio S. Lumabas. - Quezon City : Phoenix Pub. House, c1993. - vii, 282 p.: ill. 19 cm.
9710616870
Plane trigonometry.
F QA 533 L97 1993
Plane trigonometry. / Rogelio S. Lumabas. - Quezon City : Phoenix Pub. House, c1993. - vii, 282 p.: ill. 19 cm.
9710616870
Plane trigonometry.
F QA 533 L97 1993