1. Food and Agriculture Organization of the United National. Land and Water Development Division
پدیدآورنده : Soil erosion by water: some measures for its control on cultivated lands
کتابخانه: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
موضوع : Erosion,، Soil conservation
رده :
QE
571
.
F656
1965