Johnson, M. D. (2010). Human biology: Concepts and current issues (5th ed.). Benjamin Cummings.
Cita Chicago Style (17a ed.)Johnson, Michael D. Human Biology: Concepts and Current Issues. 5th ed. San Francisco: Benjamin Cummings, 2010.
Cita MLA (9a ed.)Johnson, Michael D. Human Biology: Concepts and Current Issues. 5th ed. Benjamin Cummings, 2010.
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