Guides to the Freshwater Invertebrates of Southern Africa. Volume 5: Non-Arthropods. The Protozoans, Porifera, Cnidaria, Platyhelminthes, Nemertea, Rotifera, Nematoda, Nematomorpha, Gastrotrichia, Bryozoa, Tardigrada, Polychaeta, Oligochaeta and Hirudinea

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March 2002, Water Research Commission, Pretoria, South Africa Ring-bound soft cover, 293 pages WRC Report No. TT 167/02; ISBN 978-1-86845-827-1; price R100.00 (South Africa), US$50.00 (international) Obtainable from the Water Research Commission, Private Bag X03, Gezina, Pretoria 0031, South Africa; or orders@wrc.org.za