000
00236nam a2200109 4500
082
_a
664.0284 DIF-D
100
_a
DIFCO Laboratories
245
_a
Difco Manual
260
_a
Michigan
_b
Difco
_c
1960
300
_a
350
942
_2
ddc
_c
BK
999
_c
130927
_d
130927