Cita APA (7th ed.)

Buhrs, M., & Fengel, M. (2013). On photography: Martin Fengel. Kerber.

Cita Chicago (17th ed.)

Buhrs, Michael, i Martin Fengel. On Photography: Martin Fengel. Bielefeld [u.a.]: Kerber, 2013.

Cita MLA (8th ed.)

Buhrs, Michael, i Martin Fengel. On Photography: Martin Fengel. Kerber, 2013.