Gaya APA
Markle, S., Saunders, Z. (2009).
Animals Charles Darwin SAW: An Around- the- World Adventure .
San Fransisco:
Chrocicle Books.
Gaya MLA
Markle, Sandra., Saunders, Zina.
"Animals Charles Darwin SAW: An Around- the- World Adventure".
San Fransisco:
Chrocicle Books,
2009.
Text.