000
00272nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Ralph Singhleton
245
0
_a
Elementary genetics
260
_b
Van Nostrand
260
_c
1969
365
_b
14.50
942
_c
BK
999
_c
199022
_d
199022