Walker, J. J. (1926). The natural history of the Oxford district. Universitys press.
Čikaški stil citiranja (17. izdanje)Walker, James John. The Natural History of the Oxford District. Oxford: Universitys press, 1926.
MLA način citiranja (8. izdanje)Walker, James John. The Natural History of the Oxford District. Universitys press, 1926.
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