Encyclopaedia Britannica, 11th Edition, "Bréquigny, Louis Georges Oudard…

Encyclopaedia Britannica, 11th Edition, "Bréquigny, Louis Georges Oudard Feudrix de" to "Bulgaria"

Various

Encyclopaedia Britannica, 11th Edition, "Bréquigny, Louis Georges Oudard Feudrix de" to "Bulgaria"

Various