Kristin Earhart. (2006). "The Magic School Bus Gets Crabby (Scholastic Reader, Level 2)". Scholastic.
Cita Chicago Style (17a ed.)Kristin Earhart. "The Magic School Bus Gets Crabby (Scholastic Reader, Level 2)". Scholastic, 2006.
Cita MLA (9a ed.)Kristin Earhart. "The Magic School Bus Gets Crabby (Scholastic Reader, Level 2)". Scholastic, 2006.
Precaución: Estas citas no son 100% exactas.