Sandbach, F. (1982). Principles of pollution control. Longman.
Lua i Stíl Chicago (17ú heag.)Sandbach, Francis. Principles of Pollution Control. London ; New York: Longman, 1982.
Lua MLA (9ú heag.)Sandbach, Francis. Principles of Pollution Control. Longman, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.