Gaya APA

sis, P. (2003). the tree of life; a book depicing the life of charles darwin, naturalist, geologist and thinker (1 -). New York: Mc Graw Hill.

Gaya MLA

sis, Peter. "the tree of life; a book depicing the life of charles darwin, naturalist, geologist and thinker". 1 - New York: Mc Graw Hill, 2003. Text.