Gaya APA

Cunningham, Mary Ann, Cunningham, William P.. (2008). Principles of environmental science : inquiry and applications (4th ed.). Boston, Massachusetts: McGraw Hill Higher Education.

Gaya Chicago

Cunningham, Mary Ann, Cunningham, William P.. Principles of environmental science : inquiry and applications. 4th ed. Boston, Massachusetts: McGraw Hill Higher Education, 2008. Text.

Gaya MLA

Cunningham, Mary Ann, Cunningham, William P.. Principles of environmental science : inquiry and applications. 4th ed. Boston, Massachusetts: McGraw Hill Higher Education, 2008. Text.

Gaya Turabian

Cunningham, Mary Ann, Cunningham, William P.. Principles of environmental science : inquiry and applications. 4th ed. Boston, Massachusetts: McGraw Hill Higher Education, 2008. Print.