Kristalhelder water
Subtitle: intreerede
By: deur F.A. van Duuren
Series: Pretoria. University. Publikasies. Nuwe reeks -- nr. 60; Publikasies van die Universiteit van Pretoria -- nuwe reeks, nr. 60.
Publisher: Universiteit van Pretoria
Published: 1971
Place of publication: Pretoria
Language: afr
Number of pages: 20
Subjects: Water; Pollution; Economic aspects; Water quality; Water-supply
Notes: Summary in English.