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- [22] Chemists celebrate Earth Day 2007: Recycling - Chemistry Can! ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2007, 233 : 596 - 596
- [24] Chemists celebrate Earth Day 2005: Air - here, there, everywhere ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2005, 230 : U747 - U747
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- [27] Chemists Celebrate Earth Day 2009: Air - the sky's the limit ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2009, 237
- [28] CHED 75-Chemists celebrate Earth Day 2006: Dig it! ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 232
- [29] 5th Year anniversary of Chemists Celebrate Earth Day ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2009, 237
- [30] An electronic peer-reviewed Journal of Earth System Science Education Resources (JESSE) IGARSS 2000: IEEE 2000 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOL I - VI, PROCEEDINGS, 2000, : 1441 - 1443