Gaya APA

Bradley, K, B., Meisel, P. (2003). Energy Makes Things Happen: Let's- Read- And- Find- Out- Science, Stage 2 . New York: HarperCollins Publishers.

Gaya MLA

Bradley, Kimberly, Brubaker., Meisel, Paul. "Energy Makes Things Happen: Let's- Read- And- Find- Out- Science, Stage 2". New York: HarperCollins Publishers, 2003. Text.