Penggayaan APA
NEWNAN, Donald G.. (1990).
Engineering economic analysis .
California:
Engineering Press.
Chicago Style
NEWNAN, Donald G..
Engineering economic analysis.
California:
Engineering Press,
1990.
Buku.
MLA Style
NEWNAN, Donald G..
Engineering economic analysis.
California:
Engineering Press,
1990.
Buku.
Turabian Style
NEWNAN, Donald G..
Engineering economic analysis.
California:
Engineering Press,
1990.
Buku.