Lernen und Intelligenz; Der Einfluss von Trainingsmethoden auf die Intelligenztestleistung Schwachbegabter Kinder By Klauer, Karl Josef Books / Paperback Special Collections / Author Archives › John Gach Collection Publisher: Julius Beltz, January 1969 Price $23.11 Free Shipping Send to a friend Collectible - Good First Edition First edition copy. Collectible - Good. German edition. Shelf worn. Corners bumped. Rubbed on cover. Soiled on cover. Foxing on cover. Foxed on page edges. From the collection of John Gach (1946-2009), a bibliophile and a nationally known bookseller who specialized in rare books devoted to the human sciences. (books in german, psychology, children) $23.11 2 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.