Louw, T. H. (1969). Die boubedryf in Suid-Afrika : =: The building industry in South Africa : dit wat saak maak =: the things that matter. Pretoria: National Building Research Institute.
Παραπομπή Chicago StyleLouw, T. H. Die Boubedryf in Suid-Afrika : =: The Building Industry in South Africa : Dit Wat Saak Maak =: The Things That Matter. Pretoria: National Building Research Institute, 1969.
Παραπομπή MLALouw, T. H. Die Boubedryf in Suid-Afrika : =: The Building Industry in South Africa : Dit Wat Saak Maak =: The Things That Matter. Pretoria: National Building Research Institute, 1969.
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