Enger, Eldon D.
Environmental science: a study of interrelationships
McGraw-Hill Higher Education, 2004
 Buku Teks
Enger, Eldon D.
Environmental science : a study of interrelationships
McGraw-Hill, 2013
 Buku Teks
Cunningham, William P.
Principles of environmental science : inquiry & applications
McGraw-Hill, 2011
 Buku Teks
Cunningham, William P.
Principles of environmental science: inquiry and application
McGraw-Hill Education, 2017
 Buku Teks
Enger, Eldon D.
Environmental science : a study of interrelationships / Eldon R. Enger and Bradley F. Smith
McGraw-Hill, 2016
 Buku Teks