Citazione Stile APA (7a Edizione)

Stenzel Byrnes, I., & Stenzel, A. (2007). The power of two: A twin triumph over cystic fibrosis. University of Missouri Press.

Citazione stile Chigago Style (17a edizione)

Stenzel Byrnes, Isabel, e Anabel Stenzel. The Power of Two: A Twin Triumph over Cystic Fibrosis. Columbia: University of Missouri Press, 2007.

Citatione MLA (9a ed.)

Stenzel Byrnes, Isabel, e Anabel Stenzel. The Power of Two: A Twin Triumph over Cystic Fibrosis. University of Missouri Press, 2007.