APA (7th ed.) Citation

Orrell, D., & Van Loon, B. (2011). Introducing economics: A graphic guide. Icon Books.

Chicago Style (17th ed.) Citation

Orrell, David, and Borin Van Loon. Introducing Economics: A Graphic Guide. London: Icon Books, 2011.

MLA (9th ed.) Citation

Orrell, David, and Borin Van Loon. Introducing Economics: A Graphic Guide. Icon Books, 2011.