Similar title to
Zwirnmann, K.-H.
(1981).
Analysis and control of nonpoint nitrate pollution of municipal water supply sources.
In:
Quality of Groundwater.
Eds. van Duijvenbooden, W., Glasbergen, P., & van Lelyveld, H.,
pp. 1115-1120 Oxford, UK: Pergamon Press.
ISBN 978-0-444-42022-0 10.1016/S0166-1116(08)72032-6.