000
00282nam a2200121Ia 4500
008
170101s1974 xx 000 0 und d
082
_a
578.15 H43E
100
_a
HAYAT, M. A
245
0
_a
Electron microscopy of enzymes
260
_b
N.Y.
_c
1974
300
_a
158p
942
_2
ddc
_c
B
999
_c
57354
_d
57354