Barker, A. (2000). Scientific method in Ptolemy's Harmonics. Cambridge University Press.
Chicago-čujuhus (17. p.)Barker, Andrew. Scientific Method in Ptolemy's Harmonics. Cambridge ; New York: Cambridge University Press, 2000.
MLA-čujuhus (9. p.)Barker, Andrew. Scientific Method in Ptolemy's Harmonics. Cambridge University Press, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.