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
Enger, Eldon D.
Environmental science : a study of interrelationships / Eldon R. Enger and Bradley F. Smith
McGraw-Hill, 2016
 Buku Teks
Mayer, J. Richard
Connections in environmental science : a case study approach
McGraw-HIll, 2001
 Buku Teks
Arms, Karen
Environmental science
Saunders College Publishing, 1990
 Buku Teks