Optimizat︠s︡ii︠a︡ prirodnoĭ sredy v uslovii︠a︡kh meliorat︠s︡ii zemelʹ
by E. M. Pospelov, V. M. Chupakhin, N. P. Matveev
Reclamation of landIrrigation
Writing a summary for young readers…
For young readers
Book data: Open Library
by E. M. Pospelov, V. M. Chupakhin, N. P. Matveev
Book data: Open Library