000
00256nam a2200109Ia 4500
008
140122s9999 xx 000 0 und d
082
_a
B.S.I.
100
_a
BSI
245
_a
Determination of density BS 3900 part A12 1975
260
_b
_c
942
_c
BK
_2
ddc
999
_c
5784
_d
5784