Koppin, B. Q. Biases in the Chandrasekar-Deming estimates. Development and maintenance of a sample vital registration system in the Philippines : seminar proceedings, May 15-16, 1975..
Παραπομπή σε μορφή Chicago (17η εκδ.)Koppin, Brigida Q. "Biases in the Chandrasekar-Deming Estimates." Development and Maintenance of a Sample Vital Registration System in the Philippines : Seminar Proceedings, May 15-16, 1975. .
Παραπομπή σε μορφή MLA (9th εκδ.)Koppin, Brigida Q. "Biases in the Chandrasekar-Deming Estimates." Development and Maintenance of a Sample Vital Registration System in the Philippines : Seminar Proceedings, May 15-16, 1975., .
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