Fresh-water limestone from the Torola Valley, northeastern El Salvador Roy, Sharat Kumar, 1897-1962 creator Wyant, Robert Kriss, joint author. contributor text book [Chicago] Chicago Natural History Museum 1953 1953
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ENG Caption title. "December 21, 1953." Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-). El Salvador Limestone QE1 .F4 vol. 10, no. 16 552.54 Fieldiana, Geology, v. 10, no. 16 https://www.biodiversitylibrary.org/bibliography/42260 Publication (Chicago Natural History Museum), 725 https://www.biodiversitylibrary.org/bibliography/3405 3811158 54000604 10.5962/bhl.title.3405 DLC