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Roof maintenance manual:



H R Snoke, W C Cullen
- NBS RPT 3994
Report Number
NBS RPT 3994


Snoke, H. and Cullen, W. (1955), Roof maintenance manual:, , National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 19, 2024)
Created January 1, 1955, Updated May 19, 2023