Cita APA (7th ed.)

Lay, S. R. (1990). Analysis: With an introduction to proof (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Lay, Steven R. Analysis: With an Introduction to Proof. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall, 1990.

Cita MLA (8th ed.)

Lay, Steven R. Analysis: With an Introduction to Proof. 2nd ed. Prentice Hall, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.