Cunningham, William P., author
Environmental science : a global concern
McGraw-Hill, 1999
 Buku Teks
Cunningham, William P., author
Environmental science : a global concern
Mc Graw Hill, 2010
 Buku Teks
Cunningham, William P., author
Environmental science : a global concern
Mc Graw Hill, 2012
 Buku Teks
Williams, Linda D., author
Environmental science demystified
McGraw-Hill, 2005
 Buku Teks
Cunningham, William P., author
Environmental science : a global concern
McGraw-Hill, 2001
 Buku Teks