Long, Jeffrey. Book Review: The Reintegration of Science and Spirituality: Subtle Matter, "Dark Matter," and the Science of Correspondence, review, Spring 2003; (https://digital.library.unt.edu/ark:/67531/metadc799317/m1/1/: accessed April 8, 2020), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .