1. Be Precise; Don't Overstate Claims;Aho;Advertising Age,1992
2. A Content Analysis of Environmental Advertising Claims: A Matrix Method Approach;Carlson;Journal of Advertising,1993
3. P&G Gets Top Marks in AA Survey;Chase;Advertising Age,1991
4. Consumers Keen on Green but Marketers Don't Deliver;Chase;Advertising Age,1992
5. Green Ads Wilt: NAD Chief;Dagnoli;Advertising Age,1992