TY - BOOK ID - 135221574 TI - Improper closure of primary containment access hatches. PY - 1979 PB - Washington, D.C. : United States Nuclear Regulatory Commission, Office of Inspection and Enforcement, DB - UniCat KW - Nuclear reactors KW - Containment. UR - https://www.unicat.be/uniCat?func=search&query=sysid:135221574 AB - ER -