Gilman, H. D. (1993). Instrumentation in wastewater treatment facilities. Alexandria, VA: Water Environment Federation.
Παραπομπή Chicago StyleGilman, Harold D. Instrumentation in Wastewater Treatment Facilities. Alexandria, VA: Water Environment Federation, 1993.
Παραπομπή MLAGilman, Harold D. Instrumentation in Wastewater Treatment Facilities. Alexandria, VA: Water Environment Federation, 1993.
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