Cita APA (7th ed.)

Boyce, W. E., & DiPrima, R. C. (2009). Elementary differential equations (Ninth edition.). AUWSF.

Cita Chicago (17th ed.)

Boyce, William E., i Richard C. DiPrima. Elementary Differential Equations. Ninth edition. Hoboken: AUWSF, 2009.

Cita MLA (9th ed.)

Boyce, William E., i Richard C. DiPrima. Elementary Differential Equations. Ninth edition. AUWSF, 2009.