Gaya APA
      Christian, G, D. et al (2014).
    Analytical chemistry [PART 2] (Seventh edition).
    London:
  John Wiley & Sons, Ltd..
  
Gaya MLA
      Christian, Gary, D.. et al.
    "Analytical chemistry [PART 2]".
    Seventh edition
    London:
  John Wiley & Sons, Ltd.,
  2014.
  e-book.