APA (7th ed.) Citation

Casler, K. (1998). Asthma: Questions you have, answers you need. People's Medical Society.

Chicago Style (17th ed.) Citation

Casler, Kristin. Asthma: Questions You Have, Answers You Need. Allentown, Pa.: People's Medical Society, 1998.

MLA (9th ed.) Citation

Casler, Kristin. Asthma: Questions You Have, Answers You Need. People's Medical Society, 1998.