Penggayaan APA
Gelfand, Donald E. (1982).
Aging (1, cet 1.).
Boston:
Brown and Company.
Chicago Style
Gelfand, Donald E.
Aging.
1, cet 1.
Boston:
Brown and Company,
1982.
Buku.
MLA Style
Gelfand, Donald E.
Aging.
1, cet 1.
Boston:
Brown and Company,
1982.
Buku.
Turabian Style
Gelfand, Donald E.
Aging.
1, cet 1.
Boston:
Brown and Company,
1982.
Buku.