000
00306nam a2200121Ia 4500
008
230907s9999 xx 000 0 und d
082
_b
JOH/N
_a
570.72
100
_a
JOHNSON, M.L.
245
0
_a
NEW BIOLOGY
260
_b
LONDON, PENGUIN BOOKS
_c
1956
650
_a
Genetics and Plant Breeding
942
_c
BK
999
_c
12174
_d
12174