Oltmanns, J., & Nicholson, D. (2018). The half has never been told: Five faces of America, by David Nicholson ; [exhibition] / Galerie Michael Haas. [Editor: Janna Oltmanns. Text: David Nicholson].

Oltmanns, Janna, and David Nicholson. The Half Has Never Been Told: Five Faces of America, by David Nicholson ; [exhibition] / Galerie Michael Haas. [Editor: Janna Oltmanns. Text: David Nicholson]. Berlin, 2018.

Oltmanns, Janna, and David Nicholson. The Half Has Never Been Told: Five Faces of America, by David Nicholson ; [exhibition] / Galerie Michael Haas. [Editor: Janna Oltmanns. Text: David Nicholson]. 2018.