Style de citation APA (7e éd.)
Porvazník, J. Opportunities and Threats of Global Environment and the Need of Their Global Governance.
Style de citation Chicago (17e éd.)
Porvazník, Ján. Opportunities and Threats of Global Environment and the Need of Their Global Governance.
Style de citation MLA (9e éd.)
Porvazník, Ján. Opportunities and Threats of Global Environment and the Need of Their Global Governance.
Attention : ces citations peuvent ne pas être correctes à 100%.