Penggayaan APA
FRANCIS, Dave. (1993).
Effective problem solving .
London:
Routledge.
Chicago Style
FRANCIS, Dave.
Effective problem solving.
London:
Routledge,
1993.
Buku.
MLA Style
FRANCIS, Dave.
Effective problem solving.
London:
Routledge,
1993.
Buku.
Turabian Style
FRANCIS, Dave.
Effective problem solving.
London:
Routledge,
1993.
Buku.