Cita APA (7a ed.)

(1979). An index and other usefull information. Springer-Verlag.

Cita Chicago Style (17a ed.)

An Index and Other Usefull Information. Berlin: Springer-Verlag, 1979.

Cita MLA (9a ed.)

An Index and Other Usefull Information. Springer-Verlag, 1979.