F. John Vernberg
The animal and the environment / F. John Vernberg, Winona B. Vernberg
Holt Rinehart and Winston, 1970
 Buku Teks
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
Bush, Mark B
Ecology of a changing planet/ Mark B. Bush
Prentice-Hall, 2000
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Begon, Michael, author
Ecology : individuals, populations and communities / Michael Begon, John L. Harper, and Colin R. Townsend
Blackwell Science, 1996
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