Steenbergen, F. v., Cornish, G., & Perry, C. (2007). Charging for irrigation services: Guidelines for practitioners. London: IWA Publishing.
Παραπομπή Chicago StyleSteenbergen, Frank van, Gez Cornish, and Chris Perry. Charging for Irrigation Services: Guidelines for Practitioners. London: IWA Publishing, 2007.
Παραπομπή MLASteenbergen, Frank van, Gez Cornish, and Chris Perry. Charging for Irrigation Services: Guidelines for Practitioners. London: IWA Publishing, 2007.
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