APA
(1991). Geriatrics Journal. New York: E.R. Squibb& Sons,Inc.
Chicago
1991. Geriatrics Journal. New York: E.R. Squibb& Sons,Inc.
Harvard
(1991). Geriatrics Journal. New York: E.R. Squibb& Sons,Inc.
MLA
Geriatrics Journal. New York: E.R. Squibb& Sons,Inc. 1991.
