APA-čujuhus (7. p.)
Perera, K., & Schechter, M. (2013). Topics in critical point theory. Cambridge University Press.
Chicago-čujuhus (17. p.)
Perera, Kanishka, juo Martin Schechter. Topics in Critical Point Theory. Cambridge: Cambridge University Press, 2013.
MLA-čujuhus (9. p.)
Perera, Kanishka, juo Martin Schechter. Topics in Critical Point Theory. Cambridge University Press, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.