sullivan, m. (2018). precalculus (10th. ed.). pearson.
Chicago-čujuhus (17. p.)sullivan, michael. Precalculus. 10th. ed. england: pearson, 2018.
MLA-čujuhus (9. p.)sullivan, michael. Precalculus. 10th. ed. pearson, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.