Douglass, F. "The Meaning of July Fourth for the Negro": Frederick Douglass. American literature, American culture.(1999).
Chicago-Zitierstil (17. Ausg.)Douglass, Frederick. ""The Meaning of July Fourth for the Negro": Frederick Douglass." American Literature, American Culture.(1999) .
MLA-Zitierstil (8. Ausg.)Douglass, Frederick. ""The Meaning of July Fourth for the Negro": Frederick Douglass." American Literature, American Culture.(1999), .
警告：这些引文格式不一定是100％准确.