Agriculture in 1970
A Century of Russian Agriculture: From Alexander II to Khruschev
by
Volin, Lazar
One Hundred Thousand Tractors: The MTS and the Development of Controls in Soviet Agriculture
by
Miller, Robert F.
Biology of Aphid Parasites (Hymenoptera: Aphidiidae) with Respect to Integrated Control
by
Starý, P.
The Economics of Subsistence Agriculture
by
Haswell, Margaret R., Clark, Colin