MLA

Watson, Ronald Ross, and Ronald Watson. Diet and Exercise In Cystic Fibrosis. Academic Press, 2015.

APA

Watson, R. Ross, & Watson, R. (2015). Diet and Exercise in Cystic Fibrosis. Academic Press.

Chicago

Watson, Ronald Ross, and Ronald Watson. Diet and Exercise In Cystic Fibrosis. : Academic Press, 2015.