Armstrong, R. L. (1979) “Fourth International Geochronology, Cosmochronology and Isotope Geology Conference: August 21-25, 1978 Snowmass — at Aspen Colorado”, Geoscience Canada, 6(2). Available at: https://journals.lib.unb.ca/index.php/GC/article/view/3158 (Accessed: 20 April 2024).