TY - BOOK ID - 6978749 TI - Volcanic ash AU - Heiken, Grant AU - Wohletz, Kenneth PY - 1985 VL - 6 SN - 0520052412 9780520052413 PB - London University of California Press DB - UniCat KW - Volcanic ash, tuff, etc. KW - Volcanoes KW - Volcanoes. UR - https://www.unicat.be/uniCat?func=search&query=sysid:6978749 AB - ER -