APA (7th ed.) Citation

(1971). Porträt Innensenator Hamburg Heinz Ruhnau.

Chicago Style (17th ed.) Citation

Porträt Innensenator Hamburg Heinz Ruhnau. 1971.

MLA (8th ed.) Citation

Porträt Innensenator Hamburg Heinz Ruhnau. 1971.

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