Gaya APA
Acton, L, (. (-1966).
Lectures on modern history, with an introd. by H.Trevor-Roper, (6th impr.). .
(London dsl):
Collins.
Gaya MLA
Acton, Lord., (1834-1902).
"Lectures on modern history, with an introd. by H.Trevor-Roper, (6th impr.). ".
(London dsl):
Collins,
-1966.
Buku.