Principles of descriptive geometry / by E. L. Ince ... Ince, E. L. (Edward Lindsay), 1891-1941. Geometry, Descriptive. QA501 .I55 515 INP Printed in Great Britain. New York, Longmans, Green & Co.; London : E. Arnold & Co., c1933. c1933. 1933 Text viii, 152 p. : eng