Dunn, Leslie Clarence. Genetics in the 20th. century; essays on the progress on genetics during its firts 50 years - New York : MacMillan, 1958 (c.1951) - 634 p. : ilus. LCCN: 22940 Subjects--Topical Terms: Genética--Discursos, ensayos, conferencias. Dewey Class. No.: 575.104 / D85