Tohutoro APA (7th ed.)
Eitel, U. (1971). Aneurysmen des Ductus arteriosus.
Tohutoru Kātū Chicago (17th ed.)
Eitel, Ulrike. Aneurysmen Des Ductus Arteriosus. Düsseldorf, 1971.
Tohutoro MLA (9th ed.)
Eitel, Ulrike. Aneurysmen Des Ductus Arteriosus. 1971.
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