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ISBN-13: 9780521774796, 978-0521774796. Learning is one of the things that humans do naturally, and it has always been a challenge for us to understand the process. Author(s): A. Engel, C. Van den Broeck.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.