APA (7th ed.) Citation

Black, S. A. (1971). Phosphorus removal by chemical addition to an extended aeration sludge plant. Ontario Water Resources Commission.

Chicago Style (17th ed.) Citation

Black, S. A. Phosphorus Removal by Chemical Addition to an Extended Aeration Sludge Plant. Toronto: Ontario Water Resources Commission, 1971.

MLA (9th ed.) Citation

Black, S. A. Phosphorus Removal by Chemical Addition to an Extended Aeration Sludge Plant. Ontario Water Resources Commission, 1971.