Style de citation APA (7e éd.)
Porvazník, J., & Ljudvigová, I. General theory of systems, cybernetics and evaluation of human competence by solving present crisis problems of civilisation.
Style de citation Chicago (17e éd.)
Porvazník, Ján, et Ivana Ljudvigová. General Theory of Systems, Cybernetics and Evaluation of Human Competence by Solving Present Crisis Problems of Civilisation.
Style de citation MLA (9e éd.)
Porvazník, Ján, et Ivana Ljudvigová. General Theory of Systems, Cybernetics and Evaluation of Human Competence by Solving Present Crisis Problems of Civilisation.
Attention : ces citations peuvent ne pas être correctes à 100%.