Laing, J. E. (1972). Births averted by a multi-method family planning program. Family Planning Evaluation Office, Population Institute, University of the Philippines.
Chicago-Zitierstil (17. Ausg.)Laing, John E. Births Averted by a Multi-method Family Planning Program. [Manila]: Family Planning Evaluation Office, Population Institute, University of the Philippines, 1972.
MLA-Zitierstil (9. Ausg.)Laing, John E. Births Averted by a Multi-method Family Planning Program. Family Planning Evaluation Office, Population Institute, University of the Philippines, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.