Starr, C. (2009). Biology: The unity and diversity of life (12th ed.). Brooks/Cole, Cengage Learning.
Chicago-viite (17. p.)Starr, Cecie. Biology: The Unity and Diversity of Life. 12th ed. Belmont, CA: Brooks/Cole, Cengage Learning, 2009.
MLA-viite (9. p.)Starr, Cecie. Biology: The Unity and Diversity of Life. 12th ed. Brooks/Cole, Cengage Learning, 2009.
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