The Nile in Canada: scientific outlook and society.
D002170:Canada; D004534:Egypt; D005618:Fresh Water; D049671:History, 18th Century; D049672:History, 19th Century; D049690:History, Ancient; D006801:Humans; D011640:Public Policy; D012106:Research; D012109:Research Support as Topic; D012586:Science / Q000266:history