Berg, L. R. (2008). Introductory botany: Plants, people, and the environment (2nd ed.). Brooks/Cole.
Chicago-viite (17. p.)Berg, Linda R. Introductory Botany: Plants, People, and the Environment. 2nd ed. Belmont: Brooks/Cole, 2008.
MLA-viite (9. p.)Berg, Linda R. Introductory Botany: Plants, People, and the Environment. 2nd ed. Brooks/Cole, 2008.
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