Cita APA (7th ed.)

(1992). Pisot and Salem numbers. Birkhäuser Verlag.

Cita Chicago (17th ed.)

Pisot and Salem Numbers. Basel ; Boston ; Berlin: Birkhäuser Verlag, 1992.

Cita MLA (8th ed.)

Pisot and Salem Numbers. Birkhäuser Verlag, 1992.

Atenció: Aquestes cites poden no estar 100% correctes.