Tours Philippines :: A comparative analysis of the "first to last" and "last to first" methods of collecting pregnancy histories as to yielding accurate estimates of change ... and Pangasinan (Seven provinces study)
Tours Philippines - A comparative analysis of the "first to last" and "last to first" methods of collecting pregnancy histories as to yielding accurate estimates of change ... and Pangasinan (Seven provinces study)
Binding: Unknown Binding Label: University of the Philippines System, Population Institute Manufacturer: University of the Philippines System, Population Institute Publication Date: 1977 Publisher: University of the Philippines System, Population Institute Studio: University of the Philippines System, Population Institute