APA Style
Pether, L, ;, H, P, ;, B, S. (2002).
Teacher's Guide: Early Level .
Washington, DC:
National Geographic Society.
MLA Style
Pether, Lesley, ;, Haley,, Patti, ;, Brown,, Sue.
"Teacher's Guide: Early Level".
Washington, DC:
National Geographic Society,
2002.
BOOK.