Geriatric psychiatry
MLA
Busse, Ewald W. and Dan G. Blazer. Geriatric psychiatry. First edition. Washington, DC : American Psychiatric Press, [1989]
APA
Busse, E. & Blazer, D. (1989). Geriatric psychiatry. First edition. Washington, DC : American Psychiatric Press.
Chicago
Busse, Ewald W. and Dan G. Blazer. Geriatric psychiatry. First edition. Washington, DC : American Psychiatric Press, [1989]