Mathematical trend curves; an aid to forecasting [by] J. V. Gregg, C. H. Hossell [and] J. T. Richardson. Gregg, J. V. (James Vincent) Hossell, C. H., joint author. Richardson, John Thomas, joint author. Production control. Time-series analysis. Business forecasting. TS155 .I446 no. 1 510 GRM Mathematical and statistical techniques for industry. Monograph no. 1 Edinburgh, Published for Imperial Chemical Industries by Oliver and Boyd; Princeton, N.J., Van Nostrand 1964. 1964. 1966 Text viii, 99 p. : eng Imperial Chemical Industries, ltd. Techniques of production control 1 Mathematical and statistical techniques for industry. Monograph no. 1