Lua APA (7ú heag.)

Brix, K. (1975). Gerhard Stengel (o.A.). Seemann.

Lua i Stíl Chicago (17ú heag.)

Brix, Karl. Gerhard Stengel. o.A. Leipzig: Seemann, 1975.

Lua MLA (8ú heag.)

Brix, Karl. Gerhard Stengel. o.A. Seemann, 1975.

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