Produkt mají v nabídce:
Underdraining of Farmland in England During the Nineteenth Century - Phillips, A. D. M.
Underdraining has been recognized as one of the major capital-intensive agricultural improvements of the nineteenth century. Over half the agricultural area of England is subject to waterlogging and is in need of some form of underdraining, rendering the improvement both technically and economically basic to much of English agriculture.
