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Pham MTN. BOOK REVIEW: Halma, R. & Oplinger, C. S. (2001). The Lehigh Valley: A Natural and Environmental History. University Park, PA: The Pennsylvania State University Press. 361 pages. ISBN: 0271020946. FIRE [Internet]. 2018Dec.6 [cited 2020Sep.26];4(1). Available from: https://fire-ojs-ttu.tdl.org/fire/index.php/FIRE/article/view/125