Young, T. L., & Castriota, L. B. (1996). Planning projects: 20 steps to effective project planning. International Association for the Study of Traditional Environments.

Young, Trevor L., and Leonardo Barci Castriota. Planning Projects: 20 Steps to Effective Project Planning. Berkeley, CA: International Association for the Study of Traditional Environments, 1996.

Young, Trevor L., and Leonardo Barci Castriota. Planning Projects: 20 Steps to Effective Project Planning. International Association for the Study of Traditional Environments, 1996.