APA-ийн эшлэл(7 дахь хэвлэлт)

Friis, R. H. (2012). Essentials of environmental health (2nd ed.). Jones & Bartlett learning.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Friis, Robert H. Essentials of Environmental Health. 2nd ed. Burlington: Jones & Bartlett learning, 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Friis, Robert H. Essentials of Environmental Health. 2nd ed. Jones & Bartlett learning, 2012.