Salvan, Jacques. To be and not to be: an analysis of Jean Paul Sartre's ontology. - Detroit, Estados Unidos Wayne State University Press. 1962 - xlii, 155 p. 20 cm. - Wayne Books; 5. . Subjects--Personal Names: SARTRE, JEAN PAUL, 1905-1980. Subjects--Topical Terms: METAFISICA. Dewey Class. No.: 194.1/Sa772Sa3