Boyce, W. E., & DiPrima, R. C. (2009). Elementary differential equations (Ninth edition.). AUWSF.
Citazione stile Chigago Style (17a edizione)Boyce, William E., e Richard C. DiPrima. Elementary Differential Equations. Ninth edition. Hoboken: AUWSF, 2009.
Citatione MLA (9a ed.)Boyce, William E., e Richard C. DiPrima. Elementary Differential Equations. Ninth edition. AUWSF, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.