Twelve lessons in trigonometry

Longley, William Raymond, 1880-1965.

Twelve lessons in trigonometry [by] Longley and Wilson. - New Haven, Conn., Whitlock's book store, inc. [c1928] - 48 p. 23 cm.

Cover title. At head of title: Yale University, the freshman year.

ca 28000926


Trigonometry--Problems, exercises, etc.

QA537 / .L6

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