Gaya APA
SIS, P. (2003).
The Tree of Life : A Book Depicting The Life of Charles Darwin : Naturalist, Geologist and Thinker (ed. 3).
New York:
Farrar Straus Giroux.
Gaya MLA
SIS, Peter.
"The Tree of Life : A Book Depicting The Life of Charles Darwin : Naturalist, Geologist and Thinker".
ed. 3
New York:
Farrar Straus Giroux,
2003.
Text.