APA aipamena

Brezina, D. W. (1974). Congress in action: The environmental education act. The Free Press.

Chicago Style aipamena

Brezina, Dennis W. Congress in Action: The Environmental Education Act. The Free Press, 1974.

MLA aipamena

Brezina, Dennis W. Congress in Action: The Environmental Education Act. The Free Press, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.