PROCEEDING OF A MEETING OF THE EC EXPERT'S GROUP 7-9 FEB 1983 VARROA JACOBSONI OUD. AFFECTING HONEY BEES:PRESENT STSTUS AND NEEDS
CAVALLORO, R
PROCEEDING OF A MEETING OF THE EC EXPERT'S GROUP 7-9 FEB 1983 VARROA JACOBSONI OUD. AFFECTING HONEY BEES:PRESENT STSTUS AND NEEDS
- NETHERLAND BRUSSELS AND LUXEMBOURG 1983
- 107 p