Histosols, their characteristics, classification, and use : proceedings of a symposium held on 30 October 1972 during the annual meeting of the Soil Science Society of America in Miami Beach, Florida / sponsored by Division S-5, Soil Genesis, Morphology, and Classification ; editorial committee, A. R. Aandahl, chairman [and others], coordinating editor, Matthias Stelly, managing editor, Richard C. Dinauer.