00536nam a22001817a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001700102100002700119245009600146260004200242300002000284650005000304CHAP20220329134615.0971013c19581951        r     00010     d  a22940  a23912  a28009  cCHAP  a575.104bD8500aDunn, Leslie Clarence.  aGenetics in the 20th. century; essays on the progress on genetics during its firts 50 years  aNew York :bMacMillan,c1958 (c.1951)  a634 p.b: ilus.14aGenéticaxDiscursos, ensayos, conferencias.