APA (7th ed.) Citation

(1987). Duisburger Ortsteile 1950-1986.

Chicago Style (17th ed.) Citation

Duisburger Ortsteile 1950-1986. Duisburg, 1987.

MLA (9th ed.) Citation

Duisburger Ortsteile 1950-1986. 1987.

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