APA Style

Stilton, T., Battan, A. (2011). Geronimo Stilton : Thea Stilton and big trouble in the big apple . New York, USA: Scholastic Inc.

MLA Style

Stilton, Thea., Battan, Alessandro. "Geronimo Stilton : Thea Stilton and big trouble in the big apple". New York, USA: Scholastic Inc, 2011. Text.