Ferre, L. (1972). Proprietary fund for the progress of Puerto Rico: An application of the Kelsonian theory, officially recommended by the Governor of Puerto Rico, and other studies on the subject. Araneta University Research Foundation.
Style de citation Chicago (17e éd.)Ferre, Luis. Proprietary Fund for the Progress of Puerto Rico: An Application of the Kelsonian Theory, Officially Recommended by the Governor of Puerto Rico, and Other Studies on the Subject. Malabon, Rizal: Araneta University Research Foundation, 1972.
Style de citation MLA (9e éd.)Ferre, Luis. Proprietary Fund for the Progress of Puerto Rico: An Application of the Kelsonian Theory, Officially Recommended by the Governor of Puerto Rico, and Other Studies on the Subject. Araneta University Research Foundation, 1972.