Még néhány link:

http://www.theolivecentre.com/Olive-Equipment-Menu/QA-OLIVE-LITERATURE/World-Catalogue-of-Olive-Varieties

http://www.oregonolivetrees.com/index_files/Mission.htm

http://www.oliveoil.eu/website/product_info.php?cust_id=&template_id=&lang=en&cPath=&from=sitemap&products_id=3