00404nam a2200133Ia 4500 20251229085843.0 251229s9999 xx 000 0 und d REF HA 202 .S73 Statistical Abstract of the United States 1991 National data book. 111th Washington D.C U.S.Government Printing Office Statistical - Abstracts BK 430395 430395 0 0 0 0 REF REF GEN 2025-12-29 0 REF HA 202 S73 020056 2025-12-29 08:58:43 2025-12-29 BK