TY  - BOOK
AU  - Dobrovolny,Jerry S.
AU  - O'Bryant,David C.
TI  - Graphics for engineers: visualization, communication, and design 
SN  - 0471871249
PY  - 1984///
CY  - New York, N.Y.
PB  - John Wiley & Sons
KW  - Engineering graphics
ER  -