International Registry of World Citizens. (2001). Register van Wereldburgers: Nieuwsbrief. Hove: International Registry of World Citizens.
Chicagoスタイル(17版)引用形式International Registry of World Citizens. Register Van Wereldburgers: Nieuwsbrief. Hove: International Registry of World Citizens, 2001.
MLA(8版)引用形式International Registry of World Citizens. Register Van Wereldburgers: Nieuwsbrief. Hove: International Registry of World Citizens, 2001.
警告: この引用は必ずしも正確ではありません.