Amber fossils -- Congresses. / https://id.loc.gov/authorities/subjects/sh96001976 https://id.loc.gov/authorities/subjects/sh99001533 : International Congress on Fossil Insects, Arthropods and Amber
2013
1
3
Amber fossils -- Dominican Republic. / https://id.loc.gov/authorities/subjects/sh96001976 https://id.loc.gov/authorities/names/n79094586-781 : Poinar, George O.