APA (7th ed.) Citation

Flynn, S. W., & Wass, C. (2018). Weird but true! Know-it-all. National Geographic.

Chicago Style (17th ed.) Citation

Flynn, Sarah Wassner, and Chip Wass. Weird but True! Know-it-all. Washington, D.C.: National Geographic, 2018.

MLA (8th ed.) Citation

Flynn, Sarah Wassner, and Chip Wass. Weird but True! Know-it-all. National Geographic, 2018.

Warning: These citations may not always be 100% accurate.