APA aipamena

Boyce, J. K. (1993). Social and Economic Dimensions of Agenda 21.

Chicago Style aipamena

Boyce, James K. Social and Economic Dimensions of Agenda 21. 1993.

MLA aipamena

Boyce, James K. Social and Economic Dimensions of Agenda 21. 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.