William P. Cunningham.
Principles of environmental science : inquiry and applications / Cunningham, William P. - xxii, 410 p. ; 28 cm.
Includes index.
Environmental sciences.--Textbooks.
Principles of environmental science : inquiry and applications / Cunningham, William P. - xxii, 410 p. ; 28 cm.
Includes index.
Environmental sciences.--Textbooks.