APA-čujuhus (7. p.)

Darwin, C. (1872). The Origin of species (6th ed.). 0.U.Pr.

Chicago-čujuhus (17. p.)

Darwin, Charles. The Origin of Species. 6th ed. London: 0.U.Pr, 1872.

MLA-čujuhus (9. p.)

Darwin, Charles. The Origin of Species. 6th ed. 0.U.Pr, 1872.

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