APA

Eastwood G. L., . (1984). Core textbook of gastroenterology. Philadelphia: Lippincott Company.

Chicago

Eastwood Gregory L, . 1984. Core textbook of gastroenterology. Philadelphia: Lippincott Company.

Harvard

Eastwood G. L., . (1984). Core textbook of gastroenterology. Philadelphia: Lippincott Company.

MLA

Eastwood Gregory L, . Core textbook of gastroenterology. Philadelphia: Lippincott Company. 1984.