Hopkins, C.L. A Key to the Water Mites (Hydracarina) of the Flatford Area. 1st. Ed. Pub. Flatford Mill Field Centre. 1961
pp.20 plus 11 plates of b/w. illus. 8vo. Fine softback. With signature and stamp of Dr. Eric Duffey (distinguished Arachnologist) to front cover.
£10.00 [Ref: 56342]