Cita APA (7th ed.)
Cohn, P. M. Linear Equations (1a.ed.). Walter Ledermann.
Cita Chicago (17th ed.)
Cohn, P. M. Linear Equations. 1a.ed. Buenos Aires: Walter Ledermann.
Cita MLA (9th ed.)
Cohn, P. M. Linear Equations. 1a.ed. Walter Ledermann.
Atenció: Aquestes cites poden no estar 100% correctes.