TY - BOOK AU - Valadez, Joseph J. TI - Assessing child survival programs in developing countries : testing lot quality assurance sampling PB - Dept. of Population and International Health, Harvard School of Public Health ; Distributed by Harvard University Press PY - 1991 T2 - Harvard series on population and international health EP - v, 247 p. UR - https://ci.nii.ac.jp/ncid/BB09071701 SN - 0674049950 ER -