Book
Clark, W. A., & Clark, L. (1998). An introduction to the Bulgarian soul. Lead Consulting.
Journal Articles
Clark, W. A. (2011). Clarifying the spiritual value of forest and their role in sustainable forest management. Journal for the Study of Religion, Nature, and Culture, 5(1), 18-38. doi: 10.1558/jsrnc.v5i1.18
Clark, W. A, & Finley, J. (2008). Household water conservation challenges in Blagoevgrad, Bulgaria: A descriptive study. Water International, 33(2), 175-188.
Clark, W. A., & Finley, J. C. (2007). Contracting meter readers in a drop-off/pick-up survey in Blagoevgrad, Bulgaria. Society & Natural Resources, 20(7), 669-673.
Clark, W. A., & Finley, J. C. (2007). Determinants of water conservation intention in Blagoevgrad, Bulgaria. Society & Natural Resources, 20(7), 613-627.
Clark, W A, & Wang, G. A. (2003). Conflicting attitudes toward inter-basin water transfers in Bulgaria. Water International, 28(1), 79-89.
Conference Proceedings
Clark, W. A. (2009). Evangelism and evolution. In International Institute for Christian Studies. Kansas City, MO.
Clark, W. A. (2009). The spiritual value of forests. In Proceedings of FMNS-2009 International Scientific Conference (Vol. 2, pp. 243-249). Blagoevgrad, Bulgaria.
Clark, W. A. (2007). Ecological and aesthetic impacts of urbanization and river management practices on the Blagoevgradska Bistritsa. In Proceedings of the Evolution and Ecology-2007 Conference (pp. 53-58). Sofia, Bulgaria: Union of Scientists in Bulgaria.
Clark, W. A. (2004). Water resource issues in Blagoevgrad, Bulgaria. In The 50th Annual Berlin Fulbright Conference. Berlin, Germany.
Clark, W. A., & Wang, G. (2002). Inter-basin water conflicts in Bulgaria. In American Water Resources Association (AWRA) Conference. Philadelphia, PA.
Dissertation
Clark, William, A. (2004). Obstacles and opportunities for water conservation in Blagoevgrad, Bulgaria. Pennsylvania State University. https://etda.libraries.psu.edu/files/final_submissions/6482
BAC 324
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