APA Style

Balkan, G. (2015). THE 50 STATES: EXPLORE THE U.S.A. WITH 50 FACT-FILLED MAPS! . : Wide Eye.

MLA Style

Balkan, Gabrielle. "THE 50 STATES: EXPLORE THE U.S.A. WITH 50 FACT-FILLED MAPS!". : Wide Eye, 2015. Text.