P1042 Yn cynnwys cyfeiriadau llyfryddol = Includes bibliographical references.
P1073 Yn cynnwys crynodeb Cymraeg/Saesneg = Includes Welsh/English summary.
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The autecology of the hornet robberfly Asilus crabroniformis L. in Wales, 1997-99 by David K. Clements. Published by Countryside Council for Wales in 2002. Publication and catalogue information, links to buy online and reader comments.