Penggayaan APA
DRUMMOND, Avril. (1996).
Research methods for therapists .
London:
Chapman & Hall.
Chicago Style
DRUMMOND, Avril.
Research methods for therapists.
London:
Chapman & Hall,
1996.
Buku.
MLA Style
DRUMMOND, Avril.
Research methods for therapists.
London:
Chapman & Hall,
1996.
Buku.
Turabian Style
DRUMMOND, Avril.
Research methods for therapists.
London:
Chapman & Hall,
1996.
Buku.