Pettygrove, S. G., & Asano, T. (1985). Irrigation with reclaimed municipal wastewater: Aguidance manual. Chelsea, MI: Lewis Publishers, Inc..
Παραπομπή Chicago StylePettygrove, Stuart G., and Takashi Asano. Irrigation With Reclaimed Municipal Wastewater: Aguidance Manual. Chelsea, MI: Lewis Publishers, Inc., 1985.
Παραπομπή MLAPettygrove, Stuart G., and Takashi Asano. Irrigation With Reclaimed Municipal Wastewater: Aguidance Manual. Chelsea, MI: Lewis Publishers, Inc., 1985.
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