United States Information Agency. (1999). Information USA [computer file]. United States Information Agency.
Chicagoスタイル(17版)引用形式United States Information Agency. Information USA [computer File]. s.l: United States Information Agency, 1999.
MLA(9版)引用形式United States Information Agency. Information USA [computer File]. United States Information Agency, 1999.
警告: この引用は必ずしも正確ではありません.