Cita APA (7a ed.)

Norden, R. (1985). Symbols and their meaning. Concordia.

Cita Chicago Style (17a ed.)

Norden, Rudolf. Symbols and Their Meaning. Louis: Concordia, 1985.

Cita MLA (9a ed.)

Norden, Rudolf. Symbols and Their Meaning. Concordia, 1985.