APA (7th ed.) Citation

Jankowski, K. L., & Hill, C. M. (2015). Junior paleontologist activity book, ages 5 to 12: Explore, learn, protect (Revised 2011, 2015.). National Park Service.

Chicago Style (17th ed.) Citation

Jankowski, Krista L., and Caroline Marshall Hill. Junior Paleontologist Activity Book, Ages 5 to 12: Explore, Learn, Protect. Revised 2011, 2015. [Washington, D.C.]: National Park Service, 2015.

MLA (9th ed.) Citation

Jankowski, Krista L., and Caroline Marshall Hill. Junior Paleontologist Activity Book, Ages 5 to 12: Explore, Learn, Protect. Revised 2011, 2015. National Park Service, 2015.