The sand and gravel resources of the country around Armthorpe, South Yorkshire - Description of 1:25 000 resource sheet SE 60
Best, D.P.
The sand and gravel resources of the country around Armthorpe, South Yorkshire - Description of 1:25 000 resource sheet SE 60 - 1 - 81 - Le calcul pratique des poutres vierendeel .
The sand and gravel resources of the country around Armthorpe, South Yorkshire - Description of 1:25 000 resource sheet SE 60 - 1 - 81 - Le calcul pratique des poutres vierendeel .