Clifford N. Mills, Edith I. Atkin & Elinor B. Flagg. 1947-48 ed.
Plane trigonometry.
R596912. Plane trigonometry. By Clifford N. Mills, Edith I. Atkin & Elinor B. Flagg. 1947-48 ed. © 16Jan48; A20521. Scott, Foresman and Company (PWH); 30Jan75; R596912.
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