Basic drawing for engineering technology / by Randolph P. Hoelscher, Clifford H. Springer and Jerry Dobrovolny. Hoelscher, Randolph P. (Randolph Philip), 1890- Springer, Randolph P. Dobrovolny, Jerry Technology. Engineering. T353 .H59 744.422 HOB includes index. New York : Wiley, c1964. c1964. 1964 Text ix, 396 p. : eng