Analytic trigonometry
Helton, Floyd Franklin
1912-
creator
text
pau
Philadelphia
Saunders
1972
monographic
eng
vii, 297 p.: ill.; 26 cm.
Floyd F. Helton.
Plane trigonometry
QA533 .H475
514.6 HEA
0721646328
78180181
DLC
720413
20140831125100.0
2268571