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المؤلفون: <a href='https://dar.bibalex.org/ar/Search/ExactResults.aspx?format_Id=1&author=Gu%C3%A9non%2C%20Francois'> Guénon, Francois &nbsp;-&nbsp; <a href='https://dar.bibalex.org/ar/Search/ExactResults.aspx?format_Id=1&author=Nefflen%2C%20John.'> Nefflen, John.
الناشرون: <a href='https://dar.bibalex.org/ar/Search/ExactResults.aspx?format_Id=1&publisher=C.B.%20Rogers'> C.B. Rogers
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: Milk. ,&nbsp; Cows.

A method of increasing the yield of the milch-cow by selecting the proper animals for the dairy; according to Guenon''s discovery.

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