00473nam a2200145 a 4500008004100000050001800041100002200059245007200081260008100153300001400234350000900248650003500257650001300292650002200305100205s1980    ||||||||||||||||| ||    u  aUNIV.NAIR(02)  aErkelens, Peter A10aLow cost timber roof truss: and provisional rules for nailed joints  aNairobi:bUniversity of Nairobi, Housing Research and Development Unitc1980  a35p.: ill  a0.00  aROOFS--DESIGN AND CONSTRUCTION  aBUILDING  aLOW COST BUILDING