{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"On the Theories of Free Trade and Protection: A Survey and a Criticism by Fabian M. Von Koch. A Paper Presented to the Third International Free Trade ... Amsterdam, September 13-16, 1921 [ 1921 ]","author_name":"Fabian M. von Koch","thumbnail_url":"https://www.ebooknetworking.net/books/111/240/big111240192X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-111240192X.html\">On the Theories of Free Trade and Protection: A Survey and a Criticism by Fabian M. Von Koch. A Paper Presented to the Third International Free Trade ... Amsterdam, September 13-16, 1921 [ 1921 ]</a>","width":400,"height":300}