Cita APA (7a ed.)

American Physiological Society (1887- ) & Heidel, W. (1967). Alimentary canal. American Physiological Society.

Cita Chicago Style (17a ed.)

American Physiological Society (1887- ) y Werner Heidel. Alimentary Canal. Washington, D.C.: American Physiological Society, 1967.

Cita MLA (8a ed.)

American Physiological Society (1887- ) y Werner Heidel. Alimentary Canal. American Physiological Society, 1967.