Meiere, H. (1949). Letter to Arno Heuduck, September 18, 1949. Saint Louis University Libraries Digitization Center.
Chicago Style (17. basım) AtıfMeiere, Hildreth. Letter to Arno Heuduck, September 18, 1949. Saint Louis University Libraries Digitization Center, 1949.
MLA (8th ed.) AtıfMeiere, Hildreth. Letter to Arno Heuduck, September 18, 1949. Saint Louis University Libraries Digitization Center, 1949.
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