APA

Greenberger N. J., Winship D. H., . (1976). Gastrointestinal disorders. Chicago: Year Book Medical Publishers.

Chicago

Greenberger Norton J, Winship Daniel H, . 1976. Gastrointestinal disorders. Chicago: Year Book Medical Publishers.

Harvard

Greenberger N. J., Winship D. H., . (1976). Gastrointestinal disorders. Chicago: Year Book Medical Publishers.

MLA

Greenberger Norton J, Winship Daniel H, . Gastrointestinal disorders. Chicago: Year Book Medical Publishers. 1976.