APA (7th ed.) Citation

Quinn, M., & Klym, M. (2002). An introduction to butterfly watching. Texas Parks & Wildlife.

Chicago Style (17th ed.) Citation

Quinn, Mike, and Mark Klym. An Introduction to Butterfly Watching. Austin, Tex.: Texas Parks & Wildlife, 2002.

MLA (9th ed.) Citation

Quinn, Mike, and Mark Klym. An Introduction to Butterfly Watching. Texas Parks & Wildlife, 2002.

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