APA Style
Samuelson, Paul A, Nordhaus, William D. (1987).
Economics Ed. 12 (Ke-12).
Singapore:
McGraw Hill.
Chicago Style
Samuelson, Paul A, Nordhaus, William D.
Economics Ed. 12.
Ke-12
Singapore:
McGraw Hill,
1987.
Text.
MLA Style
Samuelson, Paul A, Nordhaus, William D.
Economics Ed. 12.
Ke-12
Singapore:
McGraw Hill,
1987.
Text.
Turabian Style
Samuelson, Paul A, Nordhaus, William D.
Economics Ed. 12.
Ke-12
Singapore:
McGraw Hill,
1987.
Print.