Curtis, K. H. (1957). Correspondence, July 30, 1957 through August 21, 1957. Saint Louis University Libraries Digitization Center.
Chicago-стиль цитированияCurtis, Kennth; Heuduck. Correspondence, July 30, 1957 Through August 21, 1957. Saint Louis University Libraries Digitization Center, 1957.
MLA-цитированиеCurtis, Kennth; Heuduck. Correspondence, July 30, 1957 Through August 21, 1957. Saint Louis University Libraries Digitization Center, 1957.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.