by del Rio, A G, Valdez Toledo, C L, Quiros, M C
Published in Archives of andrology (1979)

by Salomón de Legname, H, Valdez Toledo, C L, Legname, A H
Published in Acta Embryologiae Experimentalis (1979)

by Valdez Toledo, C L, Pisanó, A
Published in Reproduccion (01.10.1980)