Tohutoro APA (7th ed.)
Schulte, W. (1974). Rezidivoperationen an der Mitralklappe.
Tohutoru Kātū Chicago (17th ed.)
Schulte, Walter. Rezidivoperationen an Der Mitralklappe. Erlangen, 1974.
Tohutoro MLA (9th ed.)
Schulte, Walter. Rezidivoperationen an Der Mitralklappe. 1974.
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