Hilgenkamp, K. (2005). Environmental health: Ecological perspectives. Jones and Bartlett Publishers.
Lua i Stíl Chicago (17ú heag.)Hilgenkamp, Kathryn. Environmental Health: Ecological Perspectives. Sudbury, Mass.: Jones and Bartlett Publishers, 2005.
Lua MLA (8ú heag.)Hilgenkamp, Kathryn. Environmental Health: Ecological Perspectives. Jones and Bartlett Publishers, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.