APA

Fisher R. S., Krevsky B. & Janssen Pharmaceutica. (1993). Motor disorders of the gastrointestinal tract: What's new & what to do. New York, N.Y: Academy Professional Information Services, Inc.

Chicago

Fisher Robert S, Krevsky Benjamin and Janssen Pharmaceutica. 1993. Motor disorders of the gastrointestinal tract: What's new & what to do. New York, N.Y: Academy Professional Information Services, Inc.

Harvard

Fisher R. S., Krevsky B. and Janssen Pharmaceutica. (1993). Motor disorders of the gastrointestinal tract: What's new & what to do. New York, N.Y: Academy Professional Information Services, Inc.

MLA

Fisher Robert S, Krevsky Benjamin and Janssen Pharmaceutica. Motor disorders of the gastrointestinal tract: What's new & what to do. New York, N.Y: Academy Professional Information Services, Inc. 1993.