Gaya APA
Gardner, Gerald T., Stern, Paul C.. (2002).
Environmental problems and human behavior (2).
Upper Saddle River, NJ:
Pearson.
Gaya Chicago
Gardner, Gerald T., Stern, Paul C..
Environmental problems and human behavior.
2
Upper Saddle River, NJ:
Pearson,
2002.
Text.
Gaya MLA
Gardner, Gerald T., Stern, Paul C..
Environmental problems and human behavior.
2
Upper Saddle River, NJ:
Pearson,
2002.
Text.
Gaya Turabian
Gardner, Gerald T., Stern, Paul C..
Environmental problems and human behavior.
2
Upper Saddle River, NJ:
Pearson,
2002.
Print.