Bassett, W. (2002). Environmental health procedures (6th.). SPON Press.
Lua i Stíl Chicago (17ú heag.)Bassett, W.H. Environmental Health Procedures. 6th. London: SPON Press, 2002.
Lua MLA (8ú heag.)Bassett, W.H. Environmental Health Procedures. 6th. SPON Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.