Munroe,Randall. (2014). What If?: Serious Scientific Answers to Absurd Hypothetical Questions (NA.). Houghton Mifflin Harcourt.
Citazione stile Chigago Style (17a edizione)Munroe,Randall. What If?: Serious Scientific Answers to Absurd Hypothetical Questions. NA. Boston: Houghton Mifflin Harcourt, 2014.
Citatione MLA (9a ed.)Munroe,Randall. What If?: Serious Scientific Answers to Absurd Hypothetical Questions. NA. Houghton Mifflin Harcourt, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.