APA Style
Economics. (1987).
New York:
Mcgraw-hill, Book Company.
Chicago Style
Economics.
.
New York:
Mcgraw-hill, Book Company,
1987.
teks.
MLA Style
Economics.
.
New York:
Mcgraw-hill, Book Company,
1987.
teks.
Turabian Style
Economics.
New York:
Mcgraw-hill, Book Company,
1987.
teks.