Howell, D. (2015). Social science survey data sets in the public domain: Access, quality, and importance. University of the Philippines Center for Integrative and Development Studies.
Chicago-Zitierstil (17. Ausg.)Howell, David. Social Science Survey Data Sets in the Public Domain: Access, Quality, and Importance. Quezon City: University of the Philippines Center for Integrative and Development Studies, 2015.
MLA-Zitierstil (9. Ausg.)Howell, David. Social Science Survey Data Sets in the Public Domain: Access, Quality, and Importance. University of the Philippines Center for Integrative and Development Studies, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.