Hölzl, R. (2006). Nature Conservation in the Age of Classical Modernity: The Landesausschuss für Naturpflege and the Bund für Naturschutz in Bavaria, 1905-1933. Bulletin of the German Historical Institute Washington, DC.
Chicago (17e ed.) BronvermeldingHölzl, Richard. "Nature Conservation in the Age of Classical Modernity: The Landesausschuss Für Naturpflege and the Bund Für Naturschutz in Bavaria, 1905-1933." Bulletin of the German Historical Institute Washington, DC 2006.
MLA (8e ed.) BronvermeldingHölzl, Richard. "Nature Conservation in the Age of Classical Modernity: The Landesausschuss Für Naturpflege and the Bund Für Naturschutz in Bavaria, 1905-1933." Bulletin of the German Historical Institute Washington, DC, 2006.
Let op: Deze citaties zijn niet altijd 100% accuraat.