Gaya APA

Williams, M. (2009). Edutivity Cool Wheels: Power Tractors — Mesin Pertanian Super Canggih (1). Jakarta: Gramedia.

Gaya MLA

Williams, Michael. "Edutivity Cool Wheels: Power Tractors — Mesin Pertanian Super Canggih". 1 Jakarta: Gramedia, 2009. Print.