Dar

المؤلفون: <a href='https://dar.bibalex.org/ar/Search/ExactResults.aspx?format_Id=1&author=Mann%2C%20Frank%20I.'> Mann, Frank I.
تاريخ النشر: 1912.
الناشرون: <a href='https://dar.bibalex.org/ar/Search/ExactResults.aspx?format_Id=1&publisher=Prairie%20Farmer'> Prairie Farmer
المساهمون: <a href='https://dar.bibalex.org/ar/Contributor/ContributorItems.aspx?contributor=Biodiversity%20Heritage%20Library&format_id=1'> Biodiversity Heritage Library
المجموعات: <a href='https://dar.bibalex.org/ar/Collection/CollectionItems.aspx?collection=Biodiversity%20Heritage%20Library&format_id=1'> Biodiversity Heritage Library
التصنيف: <a href='https://dar.bibalex.org/ar/Category/CategoryDetails.aspx?mainCat=Others&format_id=1'> Others
الموضوعات: Soils. ,&nbsp; Fertilizers.

Frank Mann''s soil book how to double the production of your farm every year ...