автор: Norman B. Ryder

Here is the full report of the 1970 National Fertility Study, a national sample survey for which thousands of women were interviewed who had been married at some time and were of reproductive age whe …

The 1965 National Fertility Study is the third in a continuing series of major studies of American fertility. Based on interviews with 5, 600 married women under the age of 55, the report is concerne …