[1]
Nicholson, J. and Friend, P.F. 1976. Devonian Sediments of East Greenland V. The Central Sequences, Kap Graah Group and Mount Celsius Supergroup. Meddelelser om Grønland. 206, 5 (Jan. 1976), 118 pp., 20 plates. DOI:https://doi.org/10.7146/mog.v206.141483.