Gaya APA
Keller, James F.. (1981).
Counseling the elderly : a systems approach / James F. Keller, George A. Hughston .
:
Cambridge : Harper & Row.
Gaya Chicago
Keller, James F..
Counseling the elderly : a systems approach / James F. Keller, George A. Hughston.
:
Cambridge : Harper & Row,
1981.
Buku.
Gaya MLA
Keller, James F..
Counseling the elderly : a systems approach / James F. Keller, George A. Hughston.
:
Cambridge : Harper & Row,
1981.
Buku.
Gaya Turabian
Keller, James F..
Counseling the elderly : a systems approach / James F. Keller, George A. Hughston.
:
Cambridge : Harper & Row,
1981.
Buku.