Slow sand filtration : manual for caretakers / J. T Visscher and S. Veenstra with illustrations by A. Figee.

By: Contributor(s): Material type: TextTextLanguage: Publication details: The Hague,The Netherlands, 1985.Description: 69, [4] p. ; 25 cmSubject(s): DDC classification:
  • B 16.31 VIS -12498