000
00280nam a2200121Ia 4500
100
_a
Welss, Harold & McGrath J. B.
020
_a
07-069085-5
942
_c
BK
245
_a
Technically speaking
260
_a
McGraw - Hill, New York
_c
1963
082
_a
808.52 Wel
300
_a
xi,254p
999
_c
7064
_d
7064