Stansfield, William D. Teoria y problemas de genetica por William D. Stanfield ; traducción : Esteban Fraga Escamilla. - Mexico McGraw-Hill c1971. - 298 p. ill. - Serie de compendios Schaum . Translation of : Theory and peoblems of genetics. Includes index. Subjects--Topical Terms: Genetics--Problems, exercises, etc.