APA Style

HowStuffWorks.com, . (2014). THE SCIENCE OF SUPERHEROES AND SPACE WARRIORS : Lightsabers, Batmobiles, Kryptonite, and More! . America: Sourcebooks.

MLA Style

HowStuffWorks.com, . "THE SCIENCE OF SUPERHEROES AND SPACE WARRIORS : Lightsabers, Batmobiles, Kryptonite, and More!". America: Sourcebooks, 2014. TextBook (Hardcopy).