1. Making sustainability matter Collection: Agricultural Communications Documentation Center (ACDC) Format: Commentary Publication Date: 2007-09-12 Published: USA: Hartman Group, Bellevue, Washington. Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 163 Document Number: C27052 Journal Title: Hartbeat Notes: Online newsletter. 2 pages.
2. The death of "natural" Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Hartman, Harvey (author) Format: Commentary Publication Date: 2008-01-31 Published: USA: Hartman Group, Bellevue, Washington. Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 163 Document Number: C27048 Journal Title: Hartbeat Notes: 2 pages.
