Gaya APA
The Economics of natural resource use / John M. Hartwick, Nancy D. Olewiler. (1997).
:
Reading, Mass., Addison-Wesley.
Gaya MLA
The Economics of natural resource use / John M. Hartwick, Nancy D. Olewiler.
2nd ed..
:
Reading, Mass., Addison-Wesley,
1997.
Text.