APA (7th ed.) Citation

(1987). Duisburger Ortsteile: 1950 - 1986 ; regionale Daten.

Chicago Style (17th ed.) Citation

Duisburger Ortsteile: 1950 - 1986 ; Regionale Daten. Duisburg, 1987.

MLA (9th ed.) Citation

Duisburger Ortsteile: 1950 - 1986 ; Regionale Daten. 1987.

Warning: These citations may not always be 100% accurate.