APA Style
      PIRNER, H, J. (2015).
    The Unknown as an Engine for Science
An Essay on the Definite and the Indefinite .
    :
  Springer Cham.
  
MLA Style
      PIRNER, Hans, J..
    "The Unknown as an Engine for Science
An Essay on the Definite and the Indefinite".
    
    :
  Springer Cham,
  2015.
  Text.