A brief history of Portsmouth by Tim Lambert A History of Portsmouth, England "A History of Portsmouth" "Jean de Gisors; Portsmouth in 1180" "Jean de Gisors; Portsmouth in 1180" http://www.localhistories.org/portsmouth.html "Jean de Gisors; Portsmouth in 1180" Tim Lambert's Brief History of Portsmouth "A History of Portsmouth" Dostupné online. "Jean de Gisors; Portsmouth in 1180" "A History of Portsmouth" "A History of Portsmouth" Tim Lambert's Brief History of Portsmouth