01466mam a2200325 a 4500005760540MiAaHDL20071220000000.0m d cr bn ---auaua930707s1993 wiua bs s000 0 eng d$20.00sdr-wu2748451(OCoLC)28391783WIHWIHGZMn-us---A.3/3:P 66/1990/1widocsHB1545.R52 1993Richardson, James C.(James Claude)Changing age structure of the U.S., 1900-2020 :a series of population pyramids /James C. Richardson, Doris P. Slesinger, Nancy J. Hurley.Madison, Wis. :Applied Population Laboratory, Dept. of Rural Sociology, College of Agricultural and Life Sciences, University of Wisconsin-Madison/Extension,1993.Applied Population Laboratory, Dept. of Rural Sociology, College of Agricultural and Life Sciences, UW-Madison/Extension, 1450 Linden Dr., Room 305, Madison, WI 5370627 p. :ill. ;28 cm.Population series ;90-1Includes bibliographical references.Mode of access: Internet.Age distribution (Demography)United StatesStatistics.United StatesPopulationStatistics.United StatesStatistics, Vital.Hurley, Nancy J.Slesinger, Doris Peyser.University of Wisconsin--Madison.Applied Population Laboratory.00576054020071220104239.020071220000000.020120815134457.02025-07-22T18:35:19Z2025-07-22T17:50:03ZSDR-WUUNKNOWNloader.pl-001-001BKsdr-wu2748451wuSDRWUwu.89053017737WU2748451WUWU20250722googlewu.890530177371993icbibUS bib date1 >= 1931