CRATHORNE, ARTHUR R.
Brief trigonometry; a text in twenty assignments, by Arthur R. Crathorne & Gerald E. Moore.
CRATHORNE, ARTHUR R. Brief trigonometry; a text in twenty assignments, by Arthur R. Crathorne & Gerald E. Moore. © 16Apr41; A152716. Holt, Rinehart & Winston, Inc. (PWH); 15Apr69; R459884.
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