Biggs, N. L. Algebraic Graph Theory, 2nd ed. Cambridge, England: Cambridge University Press, pp. 20-21, 1993.Gallian, J. "Labeling Prisms and Prism Related Graphs." Congr. Numer.59, 89-100, 1987.Gallian, J. "Dynamic Survey of Graph Labeling." Elec. J. Combin.DS6. Dec. 21, 2018. https://www.combinatorics.org/ojs/index.php/eljc/article/view/DS6.Godsil, C. and Royle, G. Algebraic Graph Theory. New York: Springer-Verlag, pp. 118 and 131, 2001.Hladnik, M.; Marušič, D.; and Pisanski, T. "Cyclic Haar Graphs." Disc. Math.244, 137-153, 2002.McSorley, J. P. "Counting Structures in the Moebius Ladder." Disc. Math.184, 137-164, 1998.Jakobson, D. and Rivin, I. "On Some Extremal Problems in Graph Theory." 8 Jul 1999. http://arxiv.org/abs/math.CO/9907050.Read, R. C. and Wilson, R. J. An Atlas of Graphs. Oxford, England: Oxford University Press, pp. 263 and 270, 1998.Sloane, N. J. A. Sequence A124356 in "The On-Line Encyclopedia of Integer Sequences."