APA Style
      AGARWAL, A. et al (2015).
    Unexplained Infertility
Pathophysiology, Evaluation and Treatment .
    :
  Springer New York, NY.
  
MLA Style
      AGARWAL, Ashok. et al.
    "Unexplained Infertility
Pathophysiology, Evaluation and Treatment".
    
    :
  Springer New York, NY,
  2015.
  Text.