000 00275pam a2200121a 44500
082 _a620.1076
_bB446q
100 _aBentley, W.
245 1 _aQUESTIONS IN MACHINE CONSTRUCTION DRAWING
260 _a
_bT. B. Pub.
_c1951
300 _a50
964 _gCIRC
997 _a993 C
999 _c441901
_d441901