Penggayaan APA
IRONS, Ken. (1990).
Managing service companies .
New York:
E.I.U.
Chicago Style
IRONS, Ken.
Managing service companies.
New York:
E.I.U,
1990.
Buku.
MLA Style
IRONS, Ken.
Managing service companies.
New York:
E.I.U,
1990.
Buku.
Turabian Style
IRONS, Ken.
Managing service companies.
New York:
E.I.U,
1990.
Buku.