Gaya APA
Knowles, D, (. (-1965).
The evolution of medieval thought, (3th impr.). Penerbitan asli 1962. .
(London):
Longmans.
Gaya MLA
Knowles, D., (1896-1974)..
"The evolution of medieval thought, (3th impr.). Penerbitan asli 1962. ".
(London):
Longmans,
-1965.
Buku.