APA aipamena

Killham, K. (1994). Soil ecology. Cambridge: Cambridge University Press.

Chicago Style aipamena

Killham, Ken. Soil Ecology. Cambridge: Cambridge University Press, 1994.

MLA aipamena

Killham, Ken. Soil Ecology. Cambridge: Cambridge University Press, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.