000
00308nam a2200109Ia 4500
008
140122s9999 xx 000 0 und d
082
_a
576 Hewitt Wi
100
_a
Hewitt W
245
_a
Micro biological assay an introduction to quantitative principles and evaluation
260
_b
_c
1977
942
_c
BK
_2
ddc
999
_c
4415
_d
4415