Gaya APA

International, G. (2008). The New Books of Populer Science 2: Earth Science, Energy, Environmental Science, Indeks (Ke-2). New York, Amerika: Scholastic Library Publishing, INC.

Gaya MLA

International, Grolier. "The New Books of Populer Science 2: Earth Science, Energy, Environmental Science, Indeks". Ke-2 New York, Amerika: Scholastic Library Publishing, INC, 2008. Text.