TY - BOOK ID - 136624007 TI - Design and construction of building exits AU - Hatt, William Kendrick. AU - United States. PY - 1935 PB - Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:136624007 AB - ER -