APA (7th ed.) Citation

Given, P. W., & Smith, D. W. (1977). Critical evaluation of extended aeration systems in arctic and subarctic regions. The Directorate.

Chicago Style (17th ed.) Citation

Given, P. W., and D. W. Smith. Critical Evaluation of Extended Aeration Systems in Arctic and Subarctic Regions. Ottawa, Ont.: The Directorate, 1977.

MLA (9th ed.) Citation

Given, P. W., and D. W. Smith. Critical Evaluation of Extended Aeration Systems in Arctic and Subarctic Regions. The Directorate, 1977.