APA aipamena

Summary of the enviornmental report,1987. The council of enviornmental advisors,1987.

Chicago Style aipamena

Summary of the Enviornmental Report,1987. Wisbaden: The council of enviornmental advisors,1987.

MLA aipamena

Summary of the Enviornmental Report,1987. The council of enviornmental advisors,1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.