Butler, N. (1874). A practical and critical grammar of the English language. John P. Morton and Company.
Chicago-referens (17:e uppl.)Butler, Noble. A Practical and Critical Grammar of the English Language. Louisville: John P. Morton and Company, 1874.
MLA-referens (8:e uppl.)Butler, Noble. A Practical and Critical Grammar of the English Language. John P. Morton and Company, 1874.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.