Soto Rivera, Ruben. creator text bibliography pr Humacao, PR Departamento de Humanidades, Colegio Universitario de Humacao, Universidad de Puerto Rico [1999] 1999 monographic spa iii, 143 p. ill. 22 cm. specialized Rubén Soto Rivera. Cover title. Includes bibliographical references (p. 131-143). e-gr--- Philosophy, Ancient B175.S7 S68 1999 00275077 DLC 991216 20241115062630.0 283445