Tohutoro APA (7th ed.)
Semper, K. (1877). Offener Brief an Herrn Prof. Haeckel in Jena.
Tohutoru Kātū Chicago (17th ed.)
Semper, Karl. Offener Brief an Herrn Prof. Haeckel in Jena. 1877.
Tohutoro MLA (9th ed.)
Semper, Karl. Offener Brief an Herrn Prof. Haeckel in Jena. 1877.
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