Council of Europe & International Council of Museums. (1990). Nature museums: Tools for learning about, promoting and protecting the natural heritage of Europe : proceedings of the seminar organised by the Council of Europe in collaboration with the International Council of Museums, Strasbourg, 27-29 September 1989. Council of Europe.
Παραπομπή σε μορφή Chicago (17η εκδ.)Council of Europe και International Council of Museums. Nature Museums: Tools for Learning About, Promoting and Protecting the Natural Heritage of Europe : Proceedings of the Seminar Organised by the Council of Europe in Collaboration with the International Council of Museums, Strasbourg, 27-29 September 1989. Strasbourg: Council of Europe, 1990.
Παραπομπή σε μορφή MLA (9th εκδ.)Council of Europe και International Council of Museums. Nature Museums: Tools for Learning About, Promoting and Protecting the Natural Heritage of Europe : Proceedings of the Seminar Organised by the Council of Europe in Collaboration with the International Council of Museums, Strasbourg, 27-29 September 1989. Council of Europe, 1990.