Muzos, Steven J.
Study guide to accompany wallace biology: the world of life / Steven J. Muzos
Harper Collins College, 1992
 Buku Teks
Postlethwait, John H.
Explore life
Brooks/Cole, Thomson Learning, 2003
 Buku Teks
Keosian, John
Origin of life
Reinhold Publishing Corporation, 1964
 Buku Teks
Life: study guide to accompany
Ricki Lewis ... [and others]
McGraw-HIll, 2002
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Dublin, Louis I.
Lenght of life a study of the life table
Ronald Press, 1949
 Buku Teks