Genetics for the animal sciences /

by Van Vleck, Lloyd D. 1933-, Van Vleck, Lloyd D. 1933-, Pollak, Emil John, Oltenacu, Elizabeth A. Branford
Published 1987

Bases científicas de la producción lechera /

by Schmidt, Glen Henry 1931-, Schmidt, Glen Henry 1931-, Van Vleck, Lloyd D. 1933-
Published 1976