APA aipamena

CRUZ W. (2001). PROTECTING THE GLOBAL ENVIRONMENT. WORLD BANK.

Chicago Style aipamena

CRUZ W. PROTECTING THE GLOBAL ENVIRONMENT. WASHINGTON: WORLD BANK, 2001.

MLA aipamena

CRUZ W. PROTECTING THE GLOBAL ENVIRONMENT. WORLD BANK, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.