Berg, J. F. (1850). Dr. Berg's answer to the lecture of Archbishop Hughes on the decline of Protestantism: A lecture delivered in the Musical Fund Hall on Tuesday evening, November 26, 1850, in answer to Archbishop Hughes on the decline of Protestantism. Philadelphia.
Chicago-referens (17:e uppl.)Berg, Joseph F. Dr. Berg's Answer to the Lecture of Archbishop Hughes on the Decline of Protestantism: A Lecture Delivered in the Musical Fund Hall on Tuesday Evening, November 26, 1850, in Answer to Archbishop Hughes on the Decline of Protestantism. Philadelphia, 1850.
MLA-referens (8:e uppl.)Berg, Joseph F. Dr. Berg's Answer to the Lecture of Archbishop Hughes on the Decline of Protestantism: A Lecture Delivered in the Musical Fund Hall on Tuesday Evening, November 26, 1850, in Answer to Archbishop Hughes on the Decline of Protestantism. Philadelphia, 1850.