(1980). Protection and cultural animation of monuments, sites and historic towns in Europe: The present situation in Belgium, Bulgaria, Canada, the Federal Republic of Germany, France, Greece, Hungary, Italy, the Netherlands, Poland, the United Kingdom, and Yougoslavia. German Commission for UNESCO.
Cytowanie według stylu Chicago (wyd. 17)Protection and Cultural Animation of Monuments, Sites and Historic Towns in Europe: The Present Situation in Belgium, Bulgaria, Canada, the Federal Republic of Germany, France, Greece, Hungary, Italy, the Netherlands, Poland, the United Kingdom, and Yougoslavia. Bonn: German Commission for UNESCO, 1980.
Cytowanie według stylu MLA (wyd. 9)Protection and Cultural Animation of Monuments, Sites and Historic Towns in Europe: The Present Situation in Belgium, Bulgaria, Canada, the Federal Republic of Germany, France, Greece, Hungary, Italy, the Netherlands, Poland, the United Kingdom, and Yougoslavia. German Commission for UNESCO, 1980.