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Comparison of three types of antigen in heartwater serodiagnosis by indirect immunofluorescence : report of a research on Guadeloupe / Jantijn Swinkels.
- auteur,
- 1989.
- Utrecht :
-
A study of lianas in tropical rainforest of Guyana / W.J. Ursem, J.M.C. Potters.
- State university of Utrecht. Institute of systematic botany,
- 1989.
- Utrecht :