Espina, G. S. (1964). A conceptual scheme for the study of Philippine interest groups in relation to politics and administration. Philippine Journal of Public Administration.
Chicago-Zitierstil (17. Ausg.)Espina, Gerardo S. "A Conceptual Scheme for the Study of Philippine Interest Groups in Relation to Politics and Administration." Philippine Journal of Public Administration 1964.
MLA-Zitierstil (9. Ausg.)Espina, Gerardo S. "A Conceptual Scheme for the Study of Philippine Interest Groups in Relation to Politics and Administration." Philippine Journal of Public Administration, 1964.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.