APA

Darwin Charles,, . (2004). Origin of species : By means of natural selection or the preservation of favoured races in the struggle for life. New Jersey: Castele Books.

Chicago

Darwin Charles,, . 2004. Origin of species : By means of natural selection or the preservation of favoured races in the struggle for life. New Jersey: Castele Books.

Harvard

Darwin Charles,, . (2004). Origin of species : By means of natural selection or the preservation of favoured races in the struggle for life. New Jersey: Castele Books.

MLA

Darwin Charles,, . Origin of species : By means of natural selection or the preservation of favoured races in the struggle for life. New Jersey: Castele Books. 2004.