National Library of Canada. (1984). The United States federal official publications: Collection guide. National Library of Canada.
Chicago-Zitierstil (17. Ausg.)National Library of Canada. The United States Federal Official Publications: Collection Guide. Ottawa: National Library of Canada, 1984.
MLA-Zitierstil (9. Ausg.)National Library of Canada. The United States Federal Official Publications: Collection Guide. National Library of Canada, 1984.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.