Engineering drawing and geometry, eng /

af Hoelscher, Randolph P.
Udgivet 1959

Engineering Drawing and Geometry

af Hoelscher, Randolph P
Udgivet 1961

Graphic Aids in Engineering Computation

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