TY  - BOOK
AU  - Bogolyubov , S.K.
TI  - Exercises in machine drawing
U1  - 604.24 B675e 1975 
PY  - 1975///
CY  - Mascow
PB  - Mir Publishers
KW  - Engineering drawing
KW  - Mechanical drawing
KW  - Mechinary
N1  - includes index
ER  -