APA
Barbor C., Duckwall R., Riddell E. & Speicher J. (2004). Know your medicine options. Pleasantville, NY: Reader's Digest.
Chicago
Barbor Cary, Duckwall Rob, Riddell Edwina and Speicher Judy. 2004. Know your medicine options. Pleasantville, NY: Reader's Digest.
Harvard
Barbor C., Duckwall R., Riddell E. and Speicher J. (2004). Know your medicine options. Pleasantville, NY: Reader's Digest.
MLA
Barbor Cary, Duckwall Rob, Riddell Edwina and Speicher Judy. Know your medicine options. Pleasantville, NY: Reader's Digest. 2004.