APA (7th ed.) Citation

Harbo, C. L. (2011). The ultimate guide to paper airplanes: 35 amazing step-by-step designs! Capstone Press.

Chicago Style (17th ed.) Citation

Harbo, Christopher L. The Ultimate Guide to Paper Airplanes: 35 Amazing Step-by-step Designs! Mankato, Minn.: Capstone Press, 2011.

MLA (8th ed.) Citation

Harbo, Christopher L. The Ultimate Guide to Paper Airplanes: 35 Amazing Step-by-step Designs! Capstone Press, 2011.

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