DYMOND, D. P. Roman Bridges on Dere Street, Country DurhamWith a General Appendix on the Evidence for Bridges in Roman Britiain. Archaeological Journal. 1961-01, roč. 118, čís. 1, s. 136–164. Dostupné online [cit. 2019-10-08]. ISSN0066-5983. doi:10.1080/00665983.1961.10854190.
doi.org
DYMOND, D. P. Roman Bridges on Dere Street, Country DurhamWith a General Appendix on the Evidence for Bridges in Roman Britiain. Archaeological Journal. 1961-01, roč. 118, čís. 1, s. 136–164. Dostupné online [cit. 2019-10-08]. ISSN0066-5983. doi:10.1080/00665983.1961.10854190.
DYMOND, D. P. Roman Bridges on Dere Street, Country DurhamWith a General Appendix on the Evidence for Bridges in Roman Britiain. Archaeological Journal. 1961-01, roč. 118, čís. 1, s. 136–164. Dostupné online [cit. 2019-10-08]. ISSN0066-5983. doi:10.1080/00665983.1961.10854190.