Gaya APA
Heather, Ken. (1994).
Economics Theory in Action, Ed.4 (4).
:
Pearson Education.
Gaya Chicago
Heather, Ken.
Economics Theory in Action, Ed.4.
4
:
Pearson Education,
1994.
Text.
Gaya MLA
Heather, Ken.
Economics Theory in Action, Ed.4.
4
:
Pearson Education,
1994.
Text.
Gaya Turabian
Heather, Ken.
Economics Theory in Action, Ed.4.
4
:
Pearson Education,
1994.
Print.