00755nam a2200241Ia 4500001000700000003000500007005001700012008004100029035002000070040001300090041001100103100003900114240004700153245006100200260003900261300002500300490003300325500005300358504003200411650002400443650002300467650002300490117363BIBL20160527184500.0791226s1969    sp a     b    001 0 spa d  a(OCoLC)05823482  aPRWcPRW1 aspaeng1 aFrazer, John Francis Deryk.2Local04aThe sexual cycles of vertebrates.lSpanish14aLos ciclos sexuales de los vertebradoscJ. F. D. Frazer.  aBarcelonabEditorial Laborcc1969.  a140 p.bill.c20 cm.0 aNueva Coleccion Labor2Local  aTranslation of The sexual cycles of vertebrates.  aBibliography: p. 137-[138]. 0aReproduction2Local 0aSex Biology2Local 0aVertebrates2Local