Paper versus plastic in packagingWilliam P. Weizer, Sarah R. Sphar · First published 2001Open the Tome
Industrial gasesTeresa L. Hayes, Stephen Hastings, Sarah R. Sphar · First published 2000Open the Tome
Industrial water management chemicalsTeresa L. Hayes, Paul N. Dean, Sarah R. Sphar · First published 2000Open the Tome
Plant-derived chemicalsTeresa L. Hayes, Wendy F. Marley, Sarah R. Sphar · First published 1999Open the Tome
Private companies in the pump industryMary F. Babington, Jennifer L. Mapes, Sarah R. Sphar · First published 1999Open the Tome
Gasoline & other fuel additivesTeresa L. Hayes, Kelly M. Davis, Sarah R. Sphar · First published 1998Open the Tome
Private companies in the battery industryMary F. Babington, Christine M. Shearer, Sarah R. Sphar · First published 1998Open the Tome
