APA-čujuhus (7. p.)
Hallpike, C. R. (1988). The principles of social evolution. Clarendon press.
Chicago-čujuhus (17. p.)
Hallpike, C. R. The Principles of Social Evolution. Oxford: Clarendon press, 1988.
MLA-čujuhus (9. p.)
Hallpike, C. R. The Principles of Social Evolution. Clarendon press, 1988.
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