'Paper for Conference of the International Union of Forest Research Organisations, Gainesville, Florida, 14-20 March, 1971. Section 22. Forest operations and techniques. Session on "Techniques in silvicultural operations with main emphasis on mechanization"'.
Trials with a mechanical tree-shaker for harvesting cones and beech nuts in Britain by Roy Faulkner. ISBN 0855380403. Published by Forestry Commission in 1971. Publication and catalogue information, links to buy online and reader comments.