International Graphical Federation (IGF). (1952). International Graphical Federation: Congress programme 1952 : Second Congress : Great britain : 14th to 21th june 1952.
Citace podle Chicago (17th ed.)International Graphical Federation (IGF). International Graphical Federation: Congress Programme 1952 : Second Congress : Great Britain : 14th to 21th June 1952. 1952.
Citace podle MLA (8th ed.)International Graphical Federation (IGF). International Graphical Federation: Congress Programme 1952 : Second Congress : Great Britain : 14th to 21th June 1952. 1952.
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