я1/ТЖ41/Ц80
Каталог "Книги"
Пситакоза-орнитоза по селскостопанските и диви животни и птици
Темат. справка
(1962)
Цоньо Цонев
20
Каталог "Книги" | Книги
The advance of agriculture, forest economy and agriculture, sciences in Bulgaria during the years of the people's power 1944-1969
[Сборник статии]
(1969)
-in Konishev