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Freshwater Algae of North America: Ecology and Classification (Aquatic Ecology)
  • PDF
  • English
  • Year: 2003
  • Author: Robert G. Sheath, John D. Wehr, John D. Wehr, James H. Thorp
Freshwater algae of North America: ecology and classification
  • PDF
  • English
  • Year: 2002;2008
  • Author: Wehr, John D;Sheath, Robert G
Freshwater Algae of North America. Ecology and Classification
  • PDF
  • English
  • Year: 2002
  • Author: John D. Wehr and Robert G. Sheath (Eds.)
Freshwater Algae of North America, Second Edition: Ecology and Classification
  • PDF
  • English
  • Year: 2015
  • Author: John D. Wehr, Robert G. Sheath, J. Patrick Kociolek
Thorp and Covich's freshwater invertebrates. Volume 1, Ecology and general biology
  • EPUB
  • English
  • Year: 2015;2014
  • Author: Rogers, D. Christopher;Thorp, James H
Field Guide to Freshwater Invertebrates of North America (Field Guide To... (Academic Press))
  • PDF
  • English
  • Year: 2010
  • Author: James H. Thorp, D. Christopher Rogers
The Persistent Activist: How Peace Commitment Develops and Survives
  • EPUB
  • English
  • Year: 1997
  • Author: James Downton; Paul Wehr
Das eigene PC-Netzwerk - M+T Werkstatt . 12 Workshops
  • PDF
  • German
  • Year: 2002
  • Author: Wehr H., Sydekum R.