APA (7th ed.) Citation

Christensen, P. H. (2018). Furtive photographies of the Ruhrgebiet.

Chicago Style (17th ed.) Citation

Christensen, Peter H. Furtive Photographies of the Ruhrgebiet. 2018.

MLA (9th ed.) Citation

Christensen, Peter H. Furtive Photographies of the Ruhrgebiet. 2018.

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