Cita APA (7th ed.)

Willers, F. A., & Beyer, R. T. t. (1948). Practical analysis: Graphical and numerical methods. Dover Publications.

Cita Chicago (17th ed.)

Willers, Friedrich Adolf, i Robert Thomas tr Beyer. Practical Analysis: Graphical and Numerical Methods. New York: Dover Publications, 1948.

Cita MLA (9th ed.)

Willers, Friedrich Adolf, i Robert Thomas tr Beyer. Practical Analysis: Graphical and Numerical Methods. Dover Publications, 1948.