American Institute of Biological Sciences. Biological Sciences Curriculum Study & Milani, J. P. (1987). Biological science: An ecological approach: BSCS green version (6th ed.). Kendall/Hunt.
Chicago-viite (17. p.)American Institute of Biological Sciences. Biological Sciences Curriculum Study ja Jean P. Milani. Biological Science: An Ecological Approach: BSCS Green Version. 6th ed. Dubuque, IA: Kendall/Hunt, 1987.
MLA-viite (9. p.)American Institute of Biological Sciences. Biological Sciences Curriculum Study ja Jean P. Milani. Biological Science: An Ecological Approach: BSCS Green Version. 6th ed. Kendall/Hunt, 1987.
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