American Trucking Association. (1970). National motor freight classification Washington, DC: National Motor Freight Traffic Association, Inc.
Dolan, J.J. (1991). Uniform Freight Classification Rule 41. Chicago, IL: National Railroad Freight Committee.
Dudeney, H.E. (1908, September). The puzzle realm. Cassell's Magazine. p. 430.
Dudley, U. (2002, October). ''Calculus Books''. Paper presented at the meeting of the MAA Ohio Section with OhioMATYC at Kent State University Trumbull Campus, Warren, OH. (many of the same remarks were published in: Dudley, U. (1988). Calculus with Analytic Geometry by George F. Simmons. The American Mathematical Monthly, 95(9), 888-892. Available at: http://www.jstor.org/stable/2322923).
Dundas, K. (1984). To build a better box. College Mathematics Journal, 15(4), 30-36. Available at: http://www.jstor.org/stable/3027427
Fredrickson, G.N. (2003). A New Wrinkle on an Old Folding Problem. The College Mathematics Journal, 34(4), 258-263.
Friedlander, J.B. & Wilker, J.B. (1980). A budget of boxes. Mathematics Magazine, 53(5), 282-286.
Fiber Box Association. (2005). Fiber Box Handbook. Rolling Meadows, IL: Fiber Box Association.
GoPackaging.com (2006). Custom Corrugated Shipping Boxes. Retrieved October 23, 2008, from http://www.gopackaging.com/custom-boxes.aspx.
Granville, W.A. & Smith, P.F. (1911). Elements of the Differential and Integral Calculus. Boston, MA: Ginn & Co.
Larson, R., Hostetler, B. & Edwards, B. (2007) Calculus: Early Transcendental Functions, 4th Edition. Belmont, CA: Houghton Mifflin.
Miller, C.M. & Shaw, D. (2007). What else can you do with an open box? Mathematics Teacher, 100(7), 470-474.
Pirich, D.M. (1996). A new look at the classic box problem. PRIMUS, 6(1), 35-48.
Safeway Packaging. (n.d.). RSC.bmp. Retrieved October 23, 2008, from http://www.safewaypkg.com/images/Design_Catalog/RSC.bmp.
Smith, R.T. & Minton, R.B. (2007). Calculus: Early Transcendentals, 3rd Edition. New York, NY: McGraw Hill.
Stewart, J. (2008). Calculus, 6th Edition. Belmont, CA: Brooks/Cole Publishing Company.
SWF Companies. (n.d.). CE 451 Case Erector. Retrieved October 23, 2008, from http://www.swfcompanies.com/CE451.htm.
Thomas, G.B. (1953). Calculus and Analytic Geometry, 2nd Edition. Reading, MA: Addison Wesley.
Todhunter, I. (1855) A treatise on the differential calculus, 2nd Edition, Revised. London, UK: McMillan & Co.