Solomon, E. P. (1993). Biology (4th.ed.). Saunders college.
Tohutoru Kātū Chicago (17th ed.)Solomon, Eldra Pearl. Biology. 4th.ed. Philadelphia: Saunders college, 1993.
Tohutoro MLA (9th ed.)Solomon, Eldra Pearl. Biology. 4th.ed. Saunders college, 1993.
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