共 3 条
[1]
Problems of sampling and interviewing in studies of old people. R. G. Havighurst. J. Gernot . 1950
[2]
What is needed for economic security in old age. E. E. Witte. Journal of Gerontology . 1951
[3]
The traditional Chinese attitude toward old age. A. R. chandler. Journal of Gerontology . 1949