(2009). Earth, wind, water, fire: Environmental challenges to urban world heritage ; Northwest-European Regional Conference in Regensburg from September 16 - 18, 2008.
Chicago-Zitierstil (17. Ausg.)Earth, Wind, Water, Fire: Environmental Challenges to Urban World Heritage ; Northwest-European Regional Conference in Regensburg from September 16 - 18, 2008. Regensburg, 2009.
MLA-Zitierstil (9. Ausg.)Earth, Wind, Water, Fire: Environmental Challenges to Urban World Heritage ; Northwest-European Regional Conference in Regensburg from September 16 - 18, 2008. 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.