 | 96 páginas
By the end of the year 1989 , the Tropical Bont Tick had not been identified in the quarantine area , surrounding Woodford Hill , since August 1987. All island surveillance measures nevertheless must be increased as regrettably , early ... | |
 | 96 páginas
By the end of the year 1989, the Tropical Bont Tick had not J been identified in the quarantine area, surrounding Woodford Hill, since August 1987. All island surveillance measures nevertheless must be increased as regrettably, ... | |
 | 84 páginas
1989. Annual report for the year 1989. Atlantic Zone Programme CATIE - UAW - MAG . Working Documents No.9 . Turrialba , Costa Rica . WIELEMAKER , W.G. ( Ed . ) 1990. Informe de presentaciones : Taller información de suelos 2-4 oct.1990 ... | |
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