The formation of sandstone concretions
Merrill, George P. (George Perkins), 1854-1929
Article
1894
Proceedings of the United States National Museum
17
Issue: 987
87--88
BioStor
English
Washington Smithsonian Institution Press, [etc.]
BioStor: https://biostor.org/reference/78789 DOI: https://doi.org/10.5479/si.00963801.17-987.87