Get Why Informal Workers Organize by Calla (Assistant Professor in the Department of Political Science, Assistant Professor in the Department of Political Science, University of Miami) Hummel at the best price and quality guranteed only at Werezi Africa largest book ecommerce store. The book was published by Oxford University Press and it has pages. Enjoy Shopping Best Offers & Deals on books Online from Werezi - Receive at your doorstep - Fast Delivery - Secure mode of Payment