Herber, Lewis
Our synthetic environment / Lewis Herber
Alfred A. Knopf, 1962
 Buku Teks
Garte, Seymour, author
Where we stand: a surprising look at the real state of our planet
American Management Association, 2008
 eBooks
Bodanis, David
The secret family : twenty-for hours inside the mysterious world of our minds and bodies / David Bodanis
Simon & Schuster , 1997
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Southwick, Charles H., author
Ecology and the quality of our environment
D. Van Nostrand, 1976
 Buku Teks
Southwick, Charles H., author
Ecology and the quality of our environment
D. Van Nostrand, 1972
 Buku Teks