Crathorne, A. R. (1941). Brief trigonometry: A text in twenty assignments. Henry Holt.
Chicago Style (17th ed.) CitationCrathorne, Arthur R. Brief Trigonometry: A Text in Twenty Assignments. New York: Henry Holt, 1941.
MLA (9th ed.) CitationCrathorne, Arthur R. Brief Trigonometry: A Text in Twenty Assignments. Henry Holt, 1941.
Warning: These citations may not always be 100% accurate.