APA Style
David, L., Gordon, C. (2007).
The Down to Earth Guide to Global Warming (cet. 1).
New York:
Scholastic.
MLA Style
David, Laurie., Gordon, Cambria.
"The Down to Earth Guide to Global Warming".
cet. 1
New York:
Scholastic,
2007.
Buku SMP Athalia.