http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Use of endocommensal molluscan ciliated protozoa as indicators of water quality and pollution in Illinois waters
University of Illinois (Urbana-Champaign campus)
27 leaves : illustrations, diagram, graphs, plates, tables ; 28 cm.
by Eugene B. Small and Gregory A. Antipa.
Project number A-015-Ill. February 1966-September 1967.