Rensis Likert, The Human Organization: Its Management and Value, McGraw-Hill, 1967

At the request of Dr. Alfred Marrow, chairman of the board of the Harwood Manufacturig Company, Seashore and Bowers of the Institute for Social Research have been obtaining measurements each year since 1962 of the causal and intervening variables in the Weldon plant and of changes in these variables from year to year.