Penggayaan APA
RIGGS, James L.. (1996).
Engineering economics (4).
New York:
McGraw Hill.
Chicago Style
RIGGS, James L..
Engineering economics.
4
New York:
McGraw Hill,
1996.
Buku.
MLA Style
RIGGS, James L..
Engineering economics.
4
New York:
McGraw Hill,
1996.
Buku.
Turabian Style
RIGGS, James L..
Engineering economics.
4
New York:
McGraw Hill,
1996.
Buku.