Pullum, T. W. (1972). A comparison of recent Philippine fertility with the natural fertility model. Population Institute, University of the Philippines].
Chicago-Zitierstil (17. Ausg.)Pullum, Thomas W. A Comparison of Recent Philippine Fertility with the Natural Fertility Model. [Manila: Population Institute, University of the Philippines], 1972.
MLA-Zitierstil (9. Ausg.)Pullum, Thomas W. A Comparison of Recent Philippine Fertility with the Natural Fertility Model. Population Institute, University of the Philippines], 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.