1.
Bulletin of the National research institute of vegetables, ornamental plants and tea. Series A, No. 11987. B.m. : National Res. Inst. Veget. Ornam. Plants and Tea, 1987. 247 s. ISSN 0914-6644.[1, of that borrowed 0]
Slovak Agricultural Library in Nitra
www.slpk.uniag.sk