Greenland, D. J. (1978). Chemistry of soil constituents.
Chicago Style aipamenaGreenland, D J. Chemistry of Soil Constituents. John Wiley & Sons, New York, 1978.
MLA aipamenaGreenland, D J. Chemistry of Soil Constituents. 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.