http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Issues for 1985-86- have title: WWF yearbook.
Compiled, edited and published by the Public Affairs Division, World Wildlife Fund, -<1980-81> (with the cooperation of WWF/IUCN Project Management Department, <1980-81->); by the Public Affairs and Conservation Divisions, WWF International, 1982-
World Wildlife Fund. Public Affairs Division.
WWF-United States, (World Wildlife Fund Inc.), 1601 Connecticut Ave. N.W., Washington, D.C. 20009