South African Bureau of Standards. Standard specification for softwood studs for timber frames in buildings. South African Bureau of Standards.
Chicago Style aipamenaSouth African Bureau of Standards. Standard Specification for Softwood Studs for Timber Frames in Buildings. South Africa: South African Bureau of Standards.
MLA aipamenaSouth African Bureau of Standards. Standard Specification for Softwood Studs for Timber Frames in Buildings. South African Bureau of Standards.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.