Nelson, R. L., & Nyhus, L. M. (1987). Surgery of the small instestine. Appleton & Lange.
Cita Chicago Style (17a ed.)Nelson, Richard L., y Lloyd Milton Nyhus. Surgery of the Small Instestine. Norwalk: Appleton & Lange, 1987.
Cita MLA (9a ed.)Nelson, Richard L., y Lloyd Milton Nyhus. Surgery of the Small Instestine. Appleton & Lange, 1987.
Precaución: Estas citas no son 100% exactas.