(1999). Environmental management: Reading and cases. Boston: Houghton Mifflin.
Chicago Style aipamenaEnvironmental Management: Reading and Cases. Boston: Houghton Mifflin, 1999.
MLA aipamenaEnvironmental Management: Reading and Cases. Boston: Houghton Mifflin, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.