Flag Research Center (Winchester, Mass.). The flag bulletin newsletter: A bimonthly supplement to The flag bulletin / published by the Flag Research Center. The Flag Research Center.
Chicago-referens (17:e uppl.)Flag Research Center (Winchester, Mass.). The Flag Bulletin Newsletter: A Bimonthly Supplement to The Flag Bulletin / Published by the Flag Research Center. Winchester, Mass.: The Flag Research Center.
MLA-referens (8:e uppl.)Flag Research Center (Winchester, Mass.). The Flag Bulletin Newsletter: A Bimonthly Supplement to The Flag Bulletin / Published by the Flag Research Center. The Flag Research Center.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.