Munroe, R. (2014). What if? 2: Additional serious scientific answers to absurd hypothetical questions. Houghton Mifflin Harcourt.
Citace podle Chicago (17th ed.)Munroe, Randall. What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions. Boston: Houghton Mifflin Harcourt, 2014.
Citace podle MLA (9th ed.)Munroe, Randall. What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions. Houghton Mifflin Harcourt, 2014.
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