APA-viite

Martelli. Martelli's Navigation Tables: A rapid method of finding the position and for solving spherical triangle problems. Kelvin Hughes.

Chicago-tyylinen lähdeviittaus

Martelli. Martelli's Navigation Tables: A Rapid Method of Finding the Position and for Solving Spherical Triangle Problems. London: Kelvin Hughes.

MLA-viite

Martelli. Martelli's Navigation Tables: A Rapid Method of Finding the Position and for Solving Spherical Triangle Problems. Kelvin Hughes.