Trevor-Roper, H.R.
New York Harper & Row 1957
Buku Teks
Cambridge University Press , Cambridge : Cambridge University Press
Majalah, Jurnal, Buletin
Helen Dwight Reid Educational Foundation, {s.a}
Majalah, Jurnal, Buletin
Australia : Department of History University of Melbourne
Majalah, Jurnal, Buletin
Laiden : Nijmmegen
Majalah, Jurnal, Buletin