STEVENSON, F. Humus chemistry, genesis, composition, recictions / F.J. STEVENSON. New York.
Chicago Style (17th ed.) CitationSTEVENSON, F.J. Humus Chemistry, Genesis, Composition, Recictions / F.J. STEVENSON. New York.
MLA引文STEVENSON, F.J. Humus Chemistry, Genesis, Composition, Recictions / F.J. STEVENSON. New York.
警告：这些引文格式不一定是100％准确.