Cita APA (7th ed.)

Weigend, F. (1977). Albert Schäffle: Friedrich Weigend. Kohlhammer.

Cita Chicago (17th ed.)

Weigend, Friedrich. Albert Schäffle: Friedrich Weigend. Stuttgart: Kohlhammer, 1977.

Cita MLA (8th ed.)

Weigend, Friedrich. Albert Schäffle: Friedrich Weigend. Kohlhammer, 1977.