Force, Eric R., and Sandra M. Barr. “Provenance of the Lower Carboniferous Horton Group, Petit-De-Grat Island, Nova Scotia, As Revealed by Detrital Zircon Ages”. Atlantic Geoscience 48 (January 3, 2013): 137–145. Accessed April 26, 2024. https://journals.lib.unb.ca/index.php/ag/article/view/atlgeol.2012.007.