Cita APA

Yajko, R. D., Norton, L. W., & Eiseman, B. (1975). Current management of upper gastrointestinal bleeding.

Chicago Style Citation

Yajko, R D., L W. Norton, i B. Eiseman. Current Management of Upper Gastrointestinal Bleeding. 1975.

Cita MLA

Yajko, R D., L W. Norton, i B. Eiseman. Current Management of Upper Gastrointestinal Bleeding. 1975.