USHER, Michael A review of progress in undestanding the organization of communities of soil arthropods / MIchael B. Usher, Roger G. Booth and Kathleen E. Sparkes. -- [S.l.] : [s.n.], 1982 - pp. 126-144 Separata de : Pedobiología 23. Subjects--Topical Terms: Artrópodos Universal Decimal Class. No.: 595.2