(NbIOLOGI^ESKIJ METOD BORXBY S WREDITELQMI SELXSKOHOZQJSTWENNYH KULXTUR (B/s - (NbEZDENKO(B, (Nt(B.(Nt(B.s ((NmINSK (B:s (Nashn bssr(B,s, 1960)
Keywords: (NzA]ITA SELXSKOHOZQJSTWENNYH KULXTURs