Tohutoro APA (7th ed.)
Portmann, P. (1963). Meister Bertram. Rabe Verl.
Tohutoru Kātū Chicago (17th ed.)
Portmann, Paul. Meister Bertram. Zürich: Rabe Verl, 1963.
Tohutoro MLA (9th ed.)
Portmann, Paul. Meister Bertram. Rabe Verl, 1963.
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