Alexander, R. B., Boyer, E. W., Smith, R. A., Schwarz, G. E., & Moore, R. B. (2007). The Role of Headwater Streams in Downstream Water Quality1. Blackwell Publishing Ltd.
Παραπομπή Chicago StyleAlexander, Richard B., Elizabeth W. Boyer, Richard A. Smith, Gregory E. Schwarz, και Richard B. Moore. The Role of Headwater Streams in Downstream Water Quality1. Blackwell Publishing Ltd, 2007.
Παραπομπή MLAAlexander, Richard B., et al. The Role of Headwater Streams in Downstream Water Quality1. Blackwell Publishing Ltd, 2007.
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