Drooyan, Irving.
Trigonometry : an analytic approach / Irving Drooyan & Walter Hadel. - x, 358 pages : illustrations (part color) 24 cm.
67015966
Plane trigonometry.
QA533 / .D75 1967
516/.24
Trigonometry : an analytic approach / Irving Drooyan & Walter Hadel. - x, 358 pages : illustrations (part color) 24 cm.
67015966
Plane trigonometry.
QA533 / .D75 1967
516/.24