TY - BOOK ID - 138644322 TI - Resins in Paleozoic plants and in coals of high rank AU - White, David AU - Geological Survey (U.S.) PY - 1914 PB - Washington : Department of the Interior, United States Geological Survey, DB - UniCat KW - Resins, Fossil KW - Gums and resins KW - Coal KW - Paleobotany KW - Composition. KW - From 230 to 570 million years ago KW - United States. UR - https://www.unicat.be/uniCat?func=search&query=sysid:138644322 AB - ER -