APA Style
      WU, L., ZHOU, J. (2023).
    Rainfall Infiltration in Unsaturated Soil Slope Failure .
    Singapore:
  Springer Singapore.
  
MLA Style
      WU, Lizhou., ZHOU, Jianting.
    "Rainfall Infiltration in Unsaturated Soil Slope Failure".
    
    Singapore:
  Springer Singapore,
  2023.
  Text.