• Texas Business Review, June 1961 

      May, Francis B.; Beutel, A. P.; Kaderli, Fredolin J.; Day, Ralph L.; Bettinger, Charles O.; Kay, James R. (Bureau of Business Research, The University of Texas at Austin, 1961-06)
    • Texas Business Review, November 1960 

      May, Francis B.; Pratt, Parley M.; Costis, Harry G.; Lambeth, Ida M.; Bettinger, Charles O.; Kaderli, Fredolin J. (Bureau of Business Research, The University of Texas at Austin, 1960-11)