APA
Chopra D., Chopra G., . (2011). Seven spiritual laws of superheroes. London: Bantam Press.
Chicago
Chopra Deepak, Chopra Gotham, . 2011. Seven spiritual laws of superheroes. London: Bantam Press.
Harvard
Chopra D., Chopra G., . (2011). Seven spiritual laws of superheroes. London: Bantam Press.
MLA
Chopra Deepak, Chopra Gotham, . Seven spiritual laws of superheroes. London: Bantam Press. 2011.