CRRAG conference, 1974M. L. Owen, Brian Snowden Duffield, J. T. Coppock · First published 1975Open the Tome
A geographical appraisal of countryside recreation in the Edinburgh areaBrian Snowden Duffield · First published 1971Open the Tome
A geographical appraisal of countryside recreation in LanarkshireBrian Snowden Duffield · First published 1970Open the Tome
