APA-viite (7. p.)
COVEY, H. (1989). PERCEPTIONS AND ATTITUDES TOWARD SEXUALITY OF THE ELDERLY DURING THE MIDDLE AGES.
Chicago-viite (17. p.)
COVEY, H.C. PERCEPTIONS AND ATTITUDES TOWARD SEXUALITY OF THE ELDERLY DURING THE MIDDLE AGES. 1989.
MLA-viite (9. p.)
COVEY, H.C. PERCEPTIONS AND ATTITUDES TOWARD SEXUALITY OF THE ELDERLY DURING THE MIDDLE AGES. 1989.
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