Ross, D. (2010). Master math: Trigonometry. Course Technology/Cengage Learning.
Citazione stile Chigago Style (17a edizione)Ross, Debra. Master Math: Trigonometry. Boston, MA: Course Technology/Cengage Learning, 2010.
Citatione MLA (9a ed.)Ross, Debra. Master Math: Trigonometry. Course Technology/Cengage Learning, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.