Water quality--Chesapeake Bay (Md. and Va.)--Statistics--Periodicals.; Water quality biological assessment--Chesapeake Bay (Md. and Va.)--Periodicals.; Pollution--Environmental aspects--Chesapeake Bay (Md. and Va.)
Annual; Description based on: July 1984/Dec. 1997.; Latest issue consulted: July 1984/Dec. 2000.; Vols. for July 1984/Dec. 1999- issued in 2 vols.; Harvested from the web on 10/17/07
Title from the title screen (viewed Mar. 16, 2010).; "August 6, 2009."; Includes bibliographical references. Preserved online the OCLC Digital Archive. Harvested from http://www.urban.org/UploadedPDF/412027_economic_modeling.pdf on March 30, 2010.
Circuit courts--Virginia--Directories.; District courts--Virginia--Directories.; Courts--Virginia--Directories.
Annual; Began with 1977 issue.; Description based on: 1980; title from cover. Preserved in the OCLC Digital Archive. Harvested from http://www.courts.state.va.us/directories/rule115.html on 2/11/2010.