1; http://www.chrissharma.com/about-chris/
2;http://www.chrissharma.com/videos/
3:http://www.metroactive.com/papers/cruz/09.27.00/sharma-0039.html
4:http://www.rockandice.com/lates-news/climbing-jobs-benefits-and-salaries
5:https://www.reddit.com/r/climbing/comments/1g9qtv/how_do_professional_climbers_earn_a_living/
2;http://www.chrissharma.com/videos/
3:http://www.metroactive.com/papers/cruz/09.27.00/sharma-0039.html
4:http://www.rockandice.com/lates-news/climbing-jobs-benefits-and-salaries
5:https://www.reddit.com/r/climbing/comments/1g9qtv/how_do_professional_climbers_earn_a_living/