Clark, R. J. H., Bradley, P. C., & Thornton, P. (1973). The chemistry of titanium, zirconium and hafnium. Oxford : Pergamon Pr..
Chicago Style aipamenaClark, R. J. H., P. C. Bradley, and P. Thornton. The Chemistry of Titanium, Zirconium and Hafnium. Oxford : Pergamon Pr., 1973.
MLA aipamenaClark, R. J. H., et al. The Chemistry of Titanium, Zirconium and Hafnium. Oxford : Pergamon Pr., 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.