Holton, D. A., & Sheehan, J. (1993). The Petersen graph. Cambridge University Press.
Chicago-čujuhus (17. p.)Holton, Derek Allan, juo J. Sheehan. The Petersen Graph. Cambridge: Cambridge University Press, 1993.
MLA-čujuhus (9. p.)Holton, Derek Allan, juo J. Sheehan. The Petersen Graph. Cambridge University Press, 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.