Lopez, H. E. Evolution and the satiric works of Samuel Butler: A study in influence.
Čikaški stil citiranja (17. izdanje)Lopez, Helen Estacio. Evolution and the Satiric Works of Samuel Butler: A Study in Influence.
MLA način citiranja (9. izdanje)Lopez, Helen Estacio. Evolution and the Satiric Works of Samuel Butler: A Study in Influence.
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