APA način citiranja (7. izdanje)
Barker, A. (2000). Scientific method in Ptolemy's Harmonics. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)
Barker, Andrew. Scientific Method in Ptolemy's Harmonics. Cambridge ; New York: Cambridge University Press, 2000.
MLA način citiranja (9. izdanje)
Barker, Andrew. Scientific Method in Ptolemy's Harmonics. Cambridge University Press, 2000.
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