Roberts, R. J., & Shepherd, C. J. (1997). Handbook of trout and salmon diseases (3a. ed.). Fishing News Books.
Tohutoru Kātū Chicago (17th ed.)Roberts, Ronald J., me C. Jonathan Shepherd. Handbook of Trout and Salmon Diseases. 3a. ed. Oxford: Fishing News Books, 1997.
Tohutoro MLA (9th ed.)Roberts, Ronald J., me C. Jonathan Shepherd. Handbook of Trout and Salmon Diseases. 3a. ed. Fishing News Books, 1997.
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