Dar

المؤلفون: <a href='https://dar.bibalex.org/ar/Search/ExactResults.aspx?format_Id=1&author=Gerhard%2C%20Bernhard.'> Gerhard, Bernhard.
تاريخ النشر: 1878.
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

Systematisches Verzeichniss der Macrolepidopteren von Nord-Amerika.