International Graphical Federation (IGF). (1952). International Graphical Federation: Congress programme 1952 : Second Congress : Great britain : 14th to 21th june 1952.
Chicagoスタイル(17版)引用形式International Graphical Federation (IGF). International Graphical Federation: Congress Programme 1952 : Second Congress : Great Britain : 14th to 21th June 1952. 1952.
MLA(8版)引用形式International Graphical Federation (IGF). International Graphical Federation: Congress Programme 1952 : Second Congress : Great Britain : 14th to 21th June 1952. 1952.
警告: この引用は必ずしも正確ではありません.