Cita APA (7th ed.)

Jewell, D. (1988). How I do it. Medical management of severe ulcerative colitis.

Cita Chicago (17th ed.)

Jewell, D. How I Do It. Medical Management of Severe Ulcerative Colitis. 1988.

Cita MLA (9th ed.)

Jewell, D. How I Do It. Medical Management of Severe Ulcerative Colitis. 1988.