Karlsson, C., Andersson, A. E., Cheshire, P. C., & Stough, R. R. (2009). New Directions in Regional Economic Development. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-01017-0

Karlsson, Charlie, Ake E. Andersson, Paul C. Cheshire, and Roger R. Stough. New Directions in Regional Economic Development. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. https://doi.org/10.1007/978-3-642-01017-0.

Karlsson, Charlie, et al. New Directions in Regional Economic Development. Springer Berlin Heidelberg, 2009. https://doi.org/10.1007/978-3-642-01017-0.