I'm working on building a basic web crawler, just like in Bucky's videos. Instead, I'm trying to use a book search in Amazon.com. Since the page in the url is set up differently (not 'page=' at the end of the url)  than the tutorial video, I'm not sure how to write the code so it will scan multiple pages in the book search. My code currently will just re-run and print the first page over again. 

How do I add pages to this url format to scan multiple search pages? 

http://www.amazon.com/s/ref=sr_pg_1?rh=i%3Aaps%2Ck%3Aeconomics+books&keywords=economics+books&ie=UTF8&qid=1423498308

Thanks everyone!