Oliveras Delgado, Héctor F. Evidence in trial practice in Puerto Rico Héctor F. Oliveras Delgado, Keith A. Graffam, Manuel San Juan. - Eau Claire, WI National Business Institute 1993. - 91 p. 28 cm. Subjects--Topical Terms: Evidence--Puerto Rico.Pr/'actica procesal--Puerto Rico.Evidencia--Puerto Rico.Trial practice--Puerto Rico.