Putzel, L. (1880). A treatise on common forms of functional nervous diseases. W. Wood & Co..
Lua i Stíl Chicago (17ú heag.)Putzel, Leopold. A Treatise on Common Forms of Functional Nervous Diseases. New York: W. Wood & Co., 1880.
Lua MLA (8ú heag.)Putzel, Leopold. A Treatise on Common Forms of Functional Nervous Diseases. W. Wood & Co., 1880.
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