APA (7th ed.) Citation

Friis, R. H. (2007). Essentials of environmental health. Jones and Bartlett.

Chicago Style (17th ed.) Citation

Friis, Robert H. Essentials of Environmental Health. Sudbury, Mass: Jones and Bartlett, 2007.

MLA (9th ed.) Citation

Friis, Robert H. Essentials of Environmental Health. Jones and Bartlett, 2007.