Cita APA (7th ed.)

Knopp, K. (1948). Problem book in the theory of functions. Dover Publications.

Cita Chicago (17th ed.)

Knopp, Konrad. Problem Book in the Theory of Functions. Nueva York: Dover Publications, 1948.

Cita MLA (9th ed.)

Knopp, Konrad. Problem Book in the Theory of Functions. Dover Publications, 1948.