References
 
  Adams, Ansel: The Negative
 
  Adams, Ansel: The Print
 
  Coote, Jack H: Monochrome Darkroom Practice (Ilford)
 
  Langford, Michael: Basic Photography
 
  Marchesi, Jost J.: Photokollegium 1
 
  Time-Life-Series: The Camera
Light and Film
The Print
 
   
Helga Nordhoff