Towards a taxonomic classification of humus forms /
Green, R. N.,1953-
Trowbridge, R. L.
Klinka, K.,1937-
Bethesda, Md. : Society of American Foresters,
1993.
"February 1993."
"Supplement to Forest, Volume 39, Number 1."
Bibliography: p. 33-35.
Soils
Humus.
Forest soils.