Keith, J. (1982). Old people as people: Social and cultural influences on againg and old age. Little, Brown.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Keith, Jennie. Old People as People: Social and Cultural Influences on Againg and Old Age. Little, Brown, 1982.
MLA -ийн эшлэл (9 дэх хэвлэлт)Keith, Jennie. Old People as People: Social and Cultural Influences on Againg and Old Age. Little, Brown, 1982.
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