APA (7th ed.) Citation
Shirky, C. Cognitive Surplus: Creativity and Generosity in a Connected Age. Penguin.
Chicago Style (17th ed.) Citation
Shirky, Clay. Cognitive Surplus: Creativity and Generosity in a Connected Age. Nueva York, EUA: Penguin.
MLA (9th ed.) Citation
Shirky, Clay. Cognitive Surplus: Creativity and Generosity in a Connected Age. Penguin.
Warning: These citations may not always be 100% accurate.