Munroe, R. (2014). What if?: Serious scientific answers to absurd hypothetical questions (First edition.). John Murray.
Chicago-čujuhus (17. p.)Munroe, Randall. What If?: Serious Scientific Answers to Absurd Hypothetical Questions. First edition. Great Britain: John Murray, 2014.
MLA-čujuhus (9. p.)Munroe, Randall. What If?: Serious Scientific Answers to Absurd Hypothetical Questions. First edition. John Murray, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.