Bibliographic Information According to MLA format, which of these Works Cited sources is a book? OA. Felluga, D. Guide to Literary and Critical Theory. Purdue U, 28 Nov. 2003. http://www. prude. org/guidetoliterarytheory. html. Accessed 10 May 2006. OB. Wheaton, William. (1977) Income and urban residence: an analysis of consumer demand for location. American Economic Review 67 pp. 620-631. OC. Leichenko, R. M and Coulson, N. E., Listokin, D. (2001) Historic preservation and residential property values: an analysis of Texas cities. Urban Studies 38. 1973-1987. OD D. Navrud, Ståe, and Richard C. Ready. Valuing Cultural Heritage: Applying Valuation Techniques to Historic Buildings, Monuments, and Artifacts. Elgar Press, 2002.​