Каталог "Библиографии" | On line периодика
Profitableness and perspective of the apiculture in North- Eastern Bulgaria
// <I>Research<D>- for Rural Development, 2021, No 36, p. 167-173, DOI: 10.22616/rrd.27.2021.024
L. Lyubenov; A. Z. Atanasov; I. Hristakov