003740000a22001450004500060000800000082001800008100002100026100002200047245003900069250000600108260003800114260000900152300000800161650005900169  a100  a575.102 8 GAR  aGardner, Eldon J  aMertens, Thomas R  aGenetics Laboratory investigations  a7  aU S A, Burgess Publishing Company  c1980  a179  aGenetics / transmission genetics / genetic experiments