RT Book T1 Improving public safety in urban apartment dwellings: security concepts and experiemental design for New York City Housing Authority buildings T2 Rand report JF Rand report A1 Fairley, William A1 Liechtenstein, Michael LA English PP New York PB New York City Rand Institute YR 1971 UL https://krimdok.uni-tuebingen.de/Record/1098883330