Siebert, C. D. (1972). On an index of the effectiveness of health programs. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Citazione stile Chigago Style (17a edizione)Siebert, Calvin D. On an Index of the Effectiveness of Health Programs. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1972.
Citatione MLA (9a ed.)Siebert, Calvin D. On an Index of the Effectiveness of Health Programs. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.