TY - BOOK ID - 134982261 TI - An atlas of volcanic ash AU - Heiken, Grant. AU - Smithsonian Institution. PY - 1974 PB - Washington : Smithsonian Institution Press, DB - UniCat KW - Volcanic ash, tuff, etc. UR - https://www.unicat.be/uniCat?func=search&query=sysid:134982261 AB - ER -