共 14 条
[2]
BULTENA G, 1971, LIFE AFTER 70 IOWA
[3]
BURGESS EW, 1953, AM J SOCIOLOGY, V59, P352
[4]
Cumming E., 1961, GROWING OLD PROCESS
[6]
MESSER M, 1968, SOCIOL SOC RES, V52, P271
[7]
PALMORE E, 1970, NORMAL AGING
[8]
PIHLBLAD C, 1965, OLDER PEOPLE THEIR S
[9]
ROSE AM, 1968, MIDDLE AGE AGING