Holas, L. Security environment at the turn of 20th and 21st century.
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Citação norma Chicago
Holas, Lukáš. Security Environment at the Turn of 20th and 21st Century.
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Citação norma MLA
Holas, Lukáš. Security Environment at the Turn of 20th and 21st Century.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.