p m tikhonov

P. M. Tikhonov · Tatgosizdat

53 sayfa · 1951

Seed industry and trade

M. I. Dʹi︠a︡kov, P. P. Tikhonov · Gos. izd-vo selʹkhoz. lit-ry

94 sayfa · 1946

Feeds / Nutrition