ebrary, Inc. (1989). An International directory of building research organizations. National Academy Press.
Chicago Style (17th ed.) Zitazioaebrary, Inc. An International Directory of Building Research Organizations. Washington, D.C.: National Academy Press, 1989.
MLA (9th ed.) Zitazioaebrary, Inc. An International Directory of Building Research Organizations. National Academy Press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.