Church, W. R., and G. M. Young. “L’excursion Géologique De l’I.G.C.P. Dans l’Anti-Atlas Marocain, Mai 1973”. Geoscience Canada 1, no. 1 (March 3, 1974). Accessed December 27, 2024. https://journals.lib.unb.ca/index.php/GC/article/view/2820.