Burroughs, W. J. (2003). Weather cycles: Real or imaginary? (2nd ed.). Cambridge University.
Chicago Style aipamenaBurroughs, William James. Weather Cycles: Real or Imaginary? 2nd ed. Cambridge: Cambridge University, 2003.
MLA aipamenaBurroughs, William James. Weather Cycles: Real or Imaginary? 2nd ed. Cambridge University, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.