Engineering drawing and geometry, eng /

ανά Hoelscher, Randolph P.
Έκδοση 1959

Engineering Drawing and Geometry

ανά Hoelscher, Randolph P
Έκδοση 1961

Graphic Aids in Engineering Computation

ανά Hoelscher, Randolph , P, M.S., C.E. and Arnold, Norman, Joseph, E.E., M.S.E.E and Pierce, Stanley, H.
Έκδοση 1952