Meiere, H. (1949). Letter to Paul Heuduck, October 7, 1949. Saint Louis University Libraries Digitization Center.
Chicago Style (17. basım) AtıfMeiere, Hildreth. Letter to Paul Heuduck, October 7, 1949. Saint Louis University Libraries Digitization Center, 1949.
MLA (8th ed.) AtıfMeiere, Hildreth. Letter to Paul Heuduck, October 7, 1949. Saint Louis University Libraries Digitization Center, 1949.
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