Principles of arable crop production
Harper, F.
Principles of arable crop production - London : Granada, 1983 - 336 p.
37-8
537
Cultivos.
Cultivos--Rendimiento.
633 / H37
Principles of arable crop production - London : Granada, 1983 - 336 p.
37-8
537
Cultivos.
Cultivos--Rendimiento.
633 / H37
