Voters and presidentsAlfred G. Cuzan, Richard J. Heggen, Charles M. Bundrick · First published 2003Open the Tome
Small-scale hydropower from irrigation canals near Albuquerque, New MexicoRichard J. Heggen · First published 1982Open the Tome
Economic and energy analyses of regional water pollution controlRichard J. Heggen · First published 1978Open the Tome
Input/output energy analysis of regional water pollution controlRichard J. Heggen · First published 1978Open the Tome
