Williams, S.H. et Tallman, P. 1995. Graptolite-based evidence for a revised stratigraphic and structural setting of the Szechuan, Hunan and Xingchang antimony prospects, Exploits Subzone, central Newfoundland. Atlantic Geoscience. 31, 2 (août 1995). DOI:https://doi.org/10.4138/2100.