Middleton, M. (1978). The protected areas: = by Mr. Michael Middleton, Civic Trust (United Kingdom). Council of Europe.
Chicago-Zitierstil (17. Ausg.)Middleton, Michael. The Protected Areas: = by Mr. Michael Middleton, Civic Trust (United Kingdom). [Strasbourg]: Council of Europe, 1978.
MLA-Zitierstil (9. Ausg.)Middleton, Michael. The Protected Areas: = by Mr. Michael Middleton, Civic Trust (United Kingdom). Council of Europe, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.