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结果 1-10 的 27
Profilaktika i lechenie vnutrennikh nezaraznykh boleznei sel'skokhoziaistvennykh zhivotnykh
1966
Afanas'ev, I. N. | Manevich, Z. A.
Auglu razas katru gadu | Urozhai plodov, kazhdyi god
1966
Karulis, J.
The ways of increasing of productivity of fish ponds in Latvia | Пути повышения рыбопродуктивности прудов Латвии
1966
Okhryamkina, N.P.
The basic means to achieve an increase in the fish production in ponds in Latvia are: 1) the selection work; 2) fertilization of the ponds; 3) increasing of productivity of the feeding ponds; 4) application of herbicides in the amelioration of fish ponds; 5) fighting against fish diseases; 6) increasing of productivity of lakes after their treatment with polychloropinene. | Published | Not Known
显示更多 [+] 显示较少 [-]Mezkopja rokasgramata
1966
Kronitis, Janis Jana d
Auglikopiba
1966
Kārklin̦š, Jānis | Kārklin̦š, Jānis
Darzenu seklkopiba
1966
Veisteris, Peteris Petera d
Dārzen̦kopības praktiskie darbi
1966
Indriksons, E.
Rokasgramata lopkopibas parraugiem un zootehnikiem
1966
Garkāvijs, F. (Fjordas)
Padomju Latvijas ekonomika un kultura; Statistisko datu krajums
1966
