Allison, F. E. 1892-1972. Soil organic matter and its role in crop productio / F. E. Allison - New York : Elsevier Scientific Pub. Co., c1973. - vi, 637 p. ; 25 cm. - Developments in soil science, 3 . Includes bibliographies and indexes. ISBN: 0444410171 Subjects--Topical Terms: Organic chemistry.Humus.Soil science. Dewey Class. No.: 631.417 / ALS 1973