D. F. Ball profile picture

D. F. Ball

Stand Alone

The Soil (Collins New Naturalist Library, Book 77)
The sand and gravel resources of the country around Mold, Clwyd
The sand and gravel resources of the country south of Wrexham, clwyd
The Sand and Gravel Resources of the Country Around Mold, Clwyd Description of 1:25 000 Sheet SJ 26 and Part of SJ 16