The economics of public utilities : a reference book for executives, investors, engineers, and students / Luther R. Nash. Nash, Luther R. Economics 336 NAE Includes bibliographical references Microfilm. New York, N.Y., Columbia University Libraries, 1994. 1 microfilm reel, 35 mm. Filmed; NEH Project (FMEST); 1994. Master negative: 94-82102-2. No. 2 on a reel of 4 titles. New York: McGraw-Hill, 1925. 1994. 1925. 1925 Text xii, 430 p. : 1 microfilm reel, 35 mm. eng