by Public Service Commission of Maryland

1930

by West Virginia. Public Service Commission, George Holland Williams

1928

by Pennsylvania Public Utility Commission

1920

by United States. Bureau of Public Roads

1947

by Public Utilities Reports, inc

1916

by Alabama Public Service Commission

1923

by Los Angeles (Calif.). Board of Public Utilities

1917

by Pennsylvania Public Utility Commission

1919

by Manitoba. Public Utilities Commission

1914

by Public Affairs Information Service

1930

by Boston Public Library

1902

by Boston Public Library

1903