'Discussion held 9 and 10 April 1975 ...' - p.1.
'... also published in a paper-bound edition by the Royal Society in its series "Philosophical Transactions" B vol. 275, no.1-213' - title page verso.
The early history of agriculture : a joint symposium of the Royal Society and the British Academy, organized by Sir Joseph Hutchinson ... [et al.] by Joseph Hutchinson. ISBN 0197259677. Published by Oxford University Press for the British Academy in 1977. Publication and catalogue information, links to buy online and reader comments.