Roberts, Ronald J., 1941- Handbook of trout and salmon diseases / by Ronald J. Roberts and C. Jonathan Shepherd. - West Byfleet : Fishing News, 1974. - 168 p. : ill. (some col.) ; 23 cm. Includes index. ISBN: 0852380666 : £5.25 LCCN: 76352063 Nat. Bib. No.: GB75-21612 Subjects--Topical Terms: Trout--Diseases.Salmon--Diseases.Salmão--Doenças LC Class. No.: SH179.S3 / R6 Dewey Class. No.: 597.02