Appendix ): Guide to Sources of Statistics, State Statistical Abstracts, and Foreign Statistical AbstractsAlphabetically arranged, this guide contains references to important primary sources of statistical information for the United States and other countries. Secondary sources have been included if the information contained in them is presented in a particularly convenient form or if primary sources are not readily available. Nonrecurrent publications presenting compilations or estimates for years later than 2010, or types of data not available in regular series, are also included. Data are also available in press releases...
"Quad." represents "quadrennial," or every four years."Quin." represents "quinquennial," or every five years. Examples of other internet formats include ebooks, digital maps, XML files, and other kinds of digital files.