000
00239nam a2200109Ia 4500
008
220201s1975 xx 000 0 eng d
082
_a
678
_b
BRY-P
100
_a
BRYDSON J A
245
0
_a
PLASTICS MATERIALS
260
_c
1975
942
_2
ddc
999
_c
30483
_d
30483