APA aipamena

Frumkin, H. (2006). Safe and healthy school environments. Oxford University Press.

Chicago Style aipamena

Frumkin, Howard. Safe and Healthy School Environments. Oxford: Oxford University Press, 2006.

MLA aipamena

Frumkin, Howard. Safe and Healthy School Environments. Oxford University Press, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.