The sand and gravel resources of the country around Biggar, Strathclyde Region - Description of 1:25 000 sheets NS 93 and NT 03, and parts of NS 92 and NT 02
Merritt, J.W.
The sand and gravel resources of the country around Biggar, Strathclyde Region - Description of 1:25 000 sheets NS 93 and NT 03, and parts of NS 92 and NT 02 - 1 - 92
The sand and gravel resources of the country around Biggar, Strathclyde Region - Description of 1:25 000 sheets NS 93 and NT 03, and parts of NS 92 and NT 02 - 1 - 92