Medycyna Weterynaryjna > 1987 > 43 > 1
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journal ISSN : | 0025-8628 |
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Bibliography
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1. Ball В. V.: Allgemeine Dt. ImkerZtg. 17, 177, 1983.
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2. Ball В. V.: Die Biene 119, 200, 1983.
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3. Ball В. V., Aleen M. F.: Fundamental and Applied Aspects of Invertebrate Pathology. Samson R. A, Wageningen 1986, s. 151.