McCarthy, J. A. "An Indigenous and Not Exotic Plant": Toward a history of Germanics at Penn / John A. McCarthy. Teaching German in twentieth century America.(2001).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcCarthy, John A. ""An Indigenous and Not Exotic Plant": Toward a History of Germanics at Penn / John A. McCarthy." Teaching German in Twentieth Century America.(2001) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcCarthy, John A. ""An Indigenous and Not Exotic Plant": Toward a History of Germanics at Penn / John A. McCarthy." Teaching German in Twentieth Century America.(2001), .
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