TY - BOOK ID - 132243382 TI - American national standard N538: Classification of industrial ionizing radiation gauging devices PY - 1979 PB - Washington U.S. government printing office DB - UniCat KW - Optics. Quantum optics UR - https://www.unicat.be/uniCat?func=search&query=sysid:132243382 AB - ER -