APA-čujuhus (7. p.)

Enger, E. D., Gibson, A. H., & Kormelink, J. (1982). Concepts in biology (3rd ed.). WM.C brown.

Chicago-čujuhus (17. p.)

Enger, Eldon D., Andrew H. Gibson, juo J.Richard Kormelink. Concepts in Biology. 3rd ed. Iowa: WM.C brown, 1982.

MLA-čujuhus (9. p.)

Enger, Eldon D., et al. Concepts in Biology. 3rd ed. WM.C brown, 1982.

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