Gaya APA
Truett, L, J., Truett, D, B.
(1987).
Macroeconomics
.
Amerika:
Times Mirror/Mosby College Publishing.
Gaya MLA
Truett, Lila, J.., Truett, Dale, B..
"Macroeconomics".
Amerika:
Times Mirror/Mosby College Publishing,
1987.
Text.