APA-viite (7. p.)

Spatzier, R. J. (1983). Dynamical properties of algebraic systems: A study in closed geodesics.

Chicago-viite (17. p.)

Spatzier, Ralf Jürgen. Dynamical Properties of Algebraic Systems: A Study in Closed Geodesics. 1983.

MLA-viite (8. p.)

Spatzier, Ralf Jürgen. Dynamical Properties of Algebraic Systems: A Study in Closed Geodesics. 1983.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.