Lewis,W Arthur. (1978). Growth and fluctuations 1870-1913. George Allen and Unwin.
Chicago Style aipamenaLewis,W Arthur. Growth and Fluctuations 1870-1913. London: George Allen and Unwin, 1978.
MLA aipamenaLewis,W Arthur. Growth and Fluctuations 1870-1913. George Allen and Unwin, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.