Não informado. (2004). Government Reports Announcements & Index. U.S. Department of Commerce, National Technical Information Service.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Government Reports Announcements & Index. Springfield, Va: U.S. Department of Commerce, National Technical Information Service, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Government Reports Announcements & Index. U.S. Department of Commerce, National Technical Information Service, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.