^Larry H. Ludmer (2002), Cruising the Mediterranean: A Guide to the Ports of Call, hlm. 180, "The town of Gibraltar is centered around pretty Cathedral Square and its Anglican Cathedral of the Holy Trinity."
^The Hutchinson Almanac, 1999, "Tourist department Gibraltar Tourist Board, Duke of Kent House, Cathedral Square, Gibraltar"
^Philip Dennis (1977), Gibraltar, David and Charles, hlm. 126
^Dorothy Stannard (1998), Southern Spain, "Here, in Cathedral Square, the most impressive of Gibraltar's cannon, a row of nine, faces out into the bay."