Gaya APA

Moody, E, N, J, G, F, , G. (1990). Year book of digestive diseases . St. Louis: Mosby Year Book Inc..

Gaya MLA

Moody, Editor:, Norton, J., Greenberger,, Frank, , G.. "Year book of digestive diseases". St. Louis: Mosby Year Book Inc., 1990. Text.