African swine fever virus
by W. R. Hess. Bluetongue virus, by P. G. Howell and D. W. Verwoerd
Bok Engelsk 1971 William Robert Hess
Utgitt | Wien , 1971
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Omfang | 74 p. : illus.
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Opplysninger | Includes bibliographies.
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Emner | |
ISBN | 1071623338. - 9781071623336
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