Gaya APA
Barraclough, G. (1964).
The mediaeval empire, idea and reality, repr. - Historical association, general series, 17 Penerbitan asli 1950 .
London:
The historical association.
Gaya MLA
Barraclough, G..
"The mediaeval empire, idea and reality, repr. - Historical association, general series, 17 Penerbitan asli 1950 ".
London:
The historical association,
1964.
Buku.