Citazione Stile APA (7a Edizione)

Willers, F. A. (1948). Practical analysis: Graphical and numerical methods. Dover Publications.

Citazione stile Chigago Style (17a edizione)

Willers, Fr. A. Practical Analysis: Graphical and Numerical Methods. Nueva York: Dover Publications, 1948.

Citatione MLA (9a ed.)

Willers, Fr. A. Practical Analysis: Graphical and Numerical Methods. Dover Publications, 1948.