Cita APA (7th ed.)
Wolff, P. Breakthroughs in Mathematics (1a.ed.). The New American Library.
Cita Chicago (17th ed.)
Wolff, Peter. Breakthroughs in Mathematics. 1a.ed. New York: The New American Library.
Cita MLA (9th ed.)
Wolff, Peter. Breakthroughs in Mathematics. 1a.ed. The New American Library.
Atenció: Aquestes cites poden no estar 100% correctes.