Environmental Quality ManagementWalter O. Spofford Jr., Clifford S. Russell, Robert A. Kelly · First published 1976 · Latest edition 2015Open the Tome
Energy development in the SouthwestAllen V. Kneese, Alfred L. Parker, Walter O. Spofford · First published 1980Open the Tome
Interdependencies among gaseous, liquid and solid residualsClifford Russell, Walter O. Spofford, Robert A. Kelly · First published 1975Open the Tome
