APA aipamena

Carter, M., & Gregorich, E. (2009). Soil Sampling and Methods of Analysis, Second Edition. CRC Press.

Chicago Style aipamena

Carter, M.R., và E.G Gregorich. Soil Sampling and Methods of Analysis, Second Edition. CRC Press, 2009.

MLA aipamena

Carter, M.R., và E.G Gregorich. Soil Sampling and Methods of Analysis, Second Edition. CRC Press, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.