Span tables for ridged farm portals in solid timber
By: by H.J. Burgess and V.C. Johnson ; with purlintables by C.J. Mettem.
Contributors: Johnson, V. C.
Series: Information bulletin / Timber Research and Development Association -- E/IB/17
Publisher: Timber Research and Development Association
Published: 1970
Place of publication: High Wycombe
Language: eng