Gaya APA
      Gora-Marek, K. et al (2009).
    Quantitative IR studies of the concentration of Co2+ and Co3+ sites in zeolites CoZSM-5 and CoFER .
    London:
  Elsevier B.V..
  
Gaya MLA
      Gora-Marek, Kinga. et al.
    "Quantitative IR studies of the concentration of Co2+ and Co3+ sites in zeolites CoZSM-5 and CoFER".
    
    London:
  Elsevier B.V.,
  2009.
  e-journal.