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Portable XRF spectrometry, fusion, multi acid, and aqua regia results from the Queensville borehole, Yonge Street Aquifer,
southern Ontario; Knight, R D
; Valiquette, L J; Russell, H A
J
. Geological Survey of Canada,
Open File 7855, 2016, 23 pages,
https://doi.org/10.4095/297721 
Open
Access