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1

Analysis of wastewater for use in agriculture 

a laboratory manual of parasitological and bacteriological ... 
Ayres, Rachel M. ; Mara, David Duncan ; Mara, David Duncan , 1996
Copies:  Zentrale:Magazin bh 6341
 
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2

Fixed biological surfaces - Wastewater treatment. The rotat..:

Antonie, Ronald L. , 1976
Copies:  Zentrale:E02 a ing 223.3/282
 
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