Earth (the book): a visitor's guide to the human race
Stewart, Jon, 1962-, and four others, author and editor
Grand Central, 2010
 Buku Referensi
Press, Frank
Earth
W H Freeman , 1974
 Buku Teks
Hamilton, Mark
The Book
Neo-tech books, 2000
 Buku Teks
Investigating the earth
Houghton Mifflin, 1967
 Buku Teks
Knapp, B.J.
Earth and man
George Allen and Unwin, 1982
 Buku Teks