Cita APA (7th ed.)

Lecture notes in economics and mathematical systems. Springer-Verlag.

Cita Chicago (17th ed.)

Lecture Notes in Economics and Mathematical Systems. Berlin ; New York: Springer-Verlag.

Cita MLA (8th ed.)

Lecture Notes in Economics and Mathematical Systems. Springer-Verlag.

Atenció: Aquestes cites poden no estar 100% correctes.