The Online Books Page

Books by John S. Hoffman:

Books in the extended shelves:

• Hoffman, John S.: Assessing the risks of trace gases that can modify the stratosphere (U.S. Environmental Protection Agency, 1987), also by United States. Environmental Protection Agency. Office of Air and Radiation (page images at HathiTrust)
• Hoffman, John S.: Future concentrations of stratospheric chlorine and bromine (United States Environmental Protection Agency, 1988), also by Michael J. Gibbs and United States. Environmental Protection Agency. Office of Air and Radiation (page images at HathiTrust)
• Hoffman, John S.: Reducing methane emissions from livestock : opportunities and issues (U.S. Environmental Protection Agency, 1989), also by Michael J. Gibbs, Lisa Lewis, and United States. Environmental Protection Agency. Office of Air and Radiation (page images at HathiTrust)

Find more by John S. Hoffman at your library, or elsewhere.