About CURRIE L A
About National Bureau of Standards, Washington,DC
About KLOUDA G A
About National Bureau of Standards, Washington,DC
About COOPER J A
About Oregon Graduate Center
About Radiocarbon
About carbon 14
About isotope geochemistry
About Nuclear chemistry,radiochemistry in general
About Geochemistry of troposphere and stratosphere
About 放射性炭素
About 化学
About 選択性
About 人類
About 活動
About 環境汚染
About 気候