Gaya APA

Lafferty, P. (1997). Encyclopedia Of Science 1 Matter and Energy : Atoms, Moleculs, Electricity, and magnetism . New York: Macmillan.

Gaya MLA

Lafferty, Peter. "Encyclopedia Of Science 1 Matter and Energy : Atoms, Moleculs, Electricity, and magnetism". New York: Macmillan, 1997. Text.