APA (7 ম সংস্করণ) উদ্ধৃতি

United States. Office of Water Program Operations. (1977). Aerobic biological wastewater treatment facilities: Process control manual. United States, Office of Water Program Operations.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

United States. Office of Water Program Operations. Aerobic Biological Wastewater Treatment Facilities: Process Control Manual. Washington: United States, Office of Water Program Operations, 1977.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

United States. Office of Water Program Operations. Aerobic Biological Wastewater Treatment Facilities: Process Control Manual. United States, Office of Water Program Operations, 1977.