Gaya APA
Clark, J, E. et al (1996).
Macroeconomics : Study Guide For Boyes / Melvin 3rd ed (3rd Ed).
Boston:
Houghton Mifflin Company.
Gaya MLA
Clark, James, E. et al.
"Macroeconomics : Study Guide For Boyes / Melvin 3rd ed".
3rd Ed
Boston:
Houghton Mifflin Company,
1996.
Text.