Gaya APA
Skelton, Renee. (1987).
Charles Darwin and theory of natural selection .
New York:
Barrons.
Gaya Chicago
Skelton, Renee.
Charles Darwin and theory of natural selection.
New York:
Barrons,
1987.
Text.
Gaya MLA
Skelton, Renee.
Charles Darwin and theory of natural selection.
New York:
Barrons,
1987.
Text.
Gaya Turabian
Skelton, Renee.
Charles Darwin and theory of natural selection.
New York:
Barrons,
1987.
Print.