Lake and Reservoir RestorationG. Dennis Cooke, Eugene B. Welch, Spencer A. Peterson · First published 2013Open the Tome
TechnologyJohn B. Gradwell, Malcolm Welch, Eugene Martin · First published 1993 · Latest edition 2004Open the Tome
Technology shaping our worldJohn B. Gradwell, Malcolm Welch, Eugene Martin · First published 2003Open the Tome
Activity manual for Technology, shaping our worldJohn B. Gradwell, Malcolm Welch, Eugene Martin · First published 2000Open the Tome
Restoration and management of lakes and reservoirsG. Dennis Cooke, Eugene B. Welch, Spencer Peterson, Peter Newroth · First published 1993Open the Tome
Factors initiating phytoplankton blooms and resulting effects on dissolved oxygen in Duwamish River Estuary Seattle, WashingtonEugene B. Welch · First published 1969Open the Tome
