Text ( visual ) : unmediated Regulation, market prices, and process innovation : the case of the ammonia industry / Edward Greenberg, Christopher T. Hill, and David J. Newburger, with the assistance of Thomas M. Helscher, William V. Killoran, and Alan D. Norman. -- Boulder, Colo. : Westview Press , 1979. -- xix, 241 p. : ill. ; 23 cm. -- (Westview replica editions). -- Includes bibliographical references. -- ISBN 0891583815 ; (BA19031273) ; https://ci.nii.ac.jp/ncid/BA19031273 Author Heading(s): Greenberg, Edward ; Hill, Christopher T. ; Newburger, David J.. -- Classification(s): LCC : HD9660.A482 ; DC : 338.4/7/661340973. -- Subject Heading(s): LCSH : Ammonia industry -- United States ; LCSH : Ammonia industry -- Technological innovations ; LCSH : Technological innovations -- United States -- Case studies ; LCSH : Manufacturing processes -- Case studies