Expiring historic structure tax provisions : hearings before the Subcommittee on Select Revenue Measures of the Committee on Ways and Means, House of Representatives, Ninety-sixth Congress, second session, on legislation to extend the expiring provisions of federal tax law which are designed to encourage the preservation of historic structures, San Francisco, California, October 17, 1980, Boston, Massachusetts, October 21, 1980, Chicago, Illinois, October 24, 1980.