APA (7th ed.) Citation

WIjaya, L. (2010). Bill Gates. Wortel Books.

Chicago Style (17th ed.) Citation

WIjaya, Lulu. Bill Gates. Wortel Books, 2010.

MLA (8th ed.) Citation

WIjaya, Lulu. Bill Gates. Wortel Books, 2010.

Warning: These citations may not always be 100% accurate.