Willcox, J. (1892). On the evolution of the earth and the heavenly bodies. S.l..
Čikaški stil citiranja (17. izdanje)Willcox, Joseph. On the Evolution of the Earth and the Heavenly Bodies. S.l., 1892.
MLA način citiranja (8. izdanje)Willcox, Joseph. On the Evolution of the Earth and the Heavenly Bodies. S.l., 1892.
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