Shell keep (Portuguese Wikipedia)
Analysis of information sources in references of the Wikipedia article "Shell keep" in Portuguese language version.
refsWebsite
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Portuguese rank
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6th place
low place
low place
books.google.com
- Pettifer 2002, p. 7. Pettifer, Adrian (2002). English Castles: A Guide by Counties illustrated ed. [S.l.]: Boydell & Brewer. p. 7. ISBN 0-85115-782-3
- Darvill, Stamper & Timby 2002, p. 196. Darvill, Timothy; Stamper, Paul; Timby, Jane (2002). England: an Oxford archaeological guide to sites from earliest times to AD 1600 illustrated ed. [S.l.]: Oxford University Press. p. 196. ISBN 0-19-284101-7
castlestudiesgroup.org.uk
- Higham 2016, p. 63. Higham, Robert (2016), Shell-keeps revisited: the bailey on the motte? (PDF), Castle Studies Group
