000
00272 a2200121 4500
082
_a
620
_b
P972en
100
_a
_d
245
1
_a
ENGINERING EXTENSION SERIES
260
_a
_b
_c
440
_a
Engineering Extension Series
_v
No. 147
964
_g
CIRC
997
_a
A51615 s C
999
_c
469719
_d
469719