Small animal internal medicine / [edited by] Richard W. Nelson, C. Guillermo Couto. - 6th ed. - St. Louis : Mosby, c2020. - xxvi, 1578 p. : ill. (some col.) ; 29 cm. Rev. ed. of: Essentials of small animal internal medicine. 1992. Includes bibliographical references and index. ISBN: 0815163517 Subjects--Topical Terms: Dogs--Diseases.Cats--Diseases.Veterinary internal medicine. LC Class. No.: SF991