Flag Research Center (Winchester, Mass.). Flag information sources: A supplement to The flag bulletin / published by the Flag Research Center. The Flag Research Center.
Citazione stile Chigago Style (17a edizione)Flag Research Center (Winchester, Mass.). Flag Information Sources: A Supplement to The Flag Bulletin / Published by the Flag Research Center. Winchester, Mass.: The Flag Research Center.
Citatione MLA (8a ed.)Flag Research Center (Winchester, Mass.). Flag Information Sources: A Supplement to The Flag Bulletin / Published by the Flag Research Center. The Flag Research Center.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.