Natural processes in the degradation of open-air rock-art sites : an urgency intervention scale to inform conservation : the case of the Côa Valley world heritage site, Portugal /
Batarda Fernandes, António Pedro,author.
Based on the the author's thesis (Ph.D)--Bournemouth University.
"BAR S2909 2014"--Spine.
"40 years of BAR"--Back cover.
Includes bibliographical references.
Historic sites
Cultural property
Petroglyphs
Rock paintings
Petroglyphs
Rock paintings