appendix i guide to sources of statistics state statistical abstracts and foreign alphabetically arranged by subject this contains references the important pri mary information for united states published since 1990 sec ondary have been included if contained in them is presented a particularly convenient form or primary are not readily available nonrecur rent publications presenting compilations estimates years later than types data regular series also much valuable may be found reports which at end particular commodities industries similar segments our economic social structures many here listed under each divided into two main groups us govern ment other location publisher report given except fed eral agencies located washington dc most federal purchased from superintendent documents government printing office 20402 tel 202 512 1800 bookstores certain major cities