Bjor, T. Effect of planting time, harvest time and level of skin spot infection of the seed potatoes on demages caused by Oospora pustulans. Gjovik: 1974 19 p. : tab.
Bjor, T. Effect of planting time, harvest time and level of skin spot infection of the seed potatoes on demages caused by Oospora pustulans. Gjovik: 1974 19 p. : tab.
Bjor, T. (1974) Effect of planting time, harvest time and level of skin spot infection of the seed potatoes on demages caused by Oospora pustulans, Gjovik: 19 p. : tab.
Bjor, T. (1974). Effect of planting time, harvest time and level of skin spot infection of the seed potatoes on demages caused by Oospora pustulans. Gjovik: 19 p. : tab.
Bjor T. Effect of planting time, harvest time and level of skin spot infection of the seed potatoes on demages caused by Oospora pustulans. Gjovik: 1974. p. 19 p. : tab.