Cita APA (7a 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.

Cita Chicago Style (17a ed.)

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.

Cita 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.