... The Institute for plant protection, its problems and structure
английский/... The Institute for plant protection, its problems and structure / N. V. Kovalev ; The Lenin academy of agricultural sciences in USSR.... The Institute for plant protection, its problems and structure / N. V. Kovalev.... The Institute for plant protection, its problems and structure.Leningrad/, 1930 ( : Гос. тип. им. Ивана Федорова). - 1930. - 52, [1] с. : ил., карт. ; 25 см см.... The Institute for plant protection, its problems and structure. Leningrad, 1930 (Гос. тип. им. Ивана Федорова).
Библиогр.: с. 40-53. Библиогр.: с. 40-53.
Библиогр.: с. 40-53. Библиогр.: с. 40-53.