000
00284nam a2200121Ia 4500
008
151205s9999||||xx |||||||||||||| ||und||
020
_c
0
100
_a
SINGLETON,W.RALPH
245
_a
ELEMENTARY GENETICS
260
_c
1969
_b
van nostrand
650
_a
ANIMAL GENETICS
942
_c
BK
999
_c
294694
_d
294694