Brubaker, Sterling, author
To live on earth: man and his environment in perspective
A Mentor Book, 1972
 Buku Teks
Kaufman, Donald G., author
Biosphere 2000 : protecting our global environment
Kendall/Hunt, 1996
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Environment and Americans : the problem of priorities
Holt, Rinehart and Winston, 1972
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Dasmann, Raymond F. (Raymond Fredric), author
The Conservation alternative
John Wiley & Sons, 1975
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Maxwell, Kenneth E.
Environment of life
Dickenson , 1973
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