Cita APA (7a ed.)

Reyn, J. (2007). Phase portraits of planar quadratic systems. Springer.

Cita Chicago Style (17a ed.)

Reyn, John. Phase Portraits of Planar Quadratic Systems. New York: Springer, 2007.

Cita MLA (9a ed.)

Reyn, John. Phase Portraits of Planar Quadratic Systems. Springer, 2007.