000
00269nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
George Burns
245
4
_a
The science of genetics
260
_b
macmillan
260
_c
1969
365
_b
24.38
942
_c
BK
999
_c
198467
_d
198467