APA引文

Unknown. (1948). Contract draft between Paul Heuduck of the Ravenna Company and Gerdt Wagner, 1948. Saint Louis University Libraries Digitization Center.

Chicago Style (17th ed.) Citation

Unknown. Contract Draft Between Paul Heuduck of the Ravenna Company and Gerdt Wagner, 1948. Saint Louis University Libraries Digitization Center, 1948.

MLA引文

Unknown. Contract Draft Between Paul Heuduck of the Ravenna Company and Gerdt Wagner, 1948. Saint Louis University Libraries Digitization Center, 1948.

警告：這些引文格式不一定是100％准確.