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Cita Chicago Style (17a ed.)World Future Studies Conference Dubrownik, World Future Studies Federation, y World Future Studies Federation. World Alternatives - Systems Versus Needs: Future of Education : Education Towards the Future : Proceedings of the Fifth World Future Studies Conference, Dubrovnik 1976. Roma: World Future Studies Federation, 1976.
Cita MLA (9a ed.)World Future Studies Conference Dubrownik, et al. World Alternatives - Systems Versus Needs: Future of Education : Education Towards the Future : Proceedings of the Fifth World Future Studies Conference, Dubrovnik 1976. World Future Studies Federation, 1976.