Παραπομπή APA

(1973). Maintenance management systems for municipal wastewater facilities. Washington, D.C: U.S. Government Printing Office.

Παραπομπή Chicago Style

Maintenance Management Systems for Municipal Wastewater Facilities. Washington, D.C: U.S. Government Printing Office, 1973.

Παραπομπή MLA

Maintenance Management Systems for Municipal Wastewater Facilities. Washington, D.C: U.S. Government Printing Office, 1973.

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