APA
Transportation Research Board, . (1979). Investigation and development of materials resources. Washington DC: Transportation Technology Support for Developing Countries. Compendium 6.
Chicago
Transportation Research Board, . 1979. Investigation and development of materials resources. Washington DC: Transportation Technology Support for Developing Countries. Compendium 6.
Harvard
Transportation Research Board, . (1979). Investigation and development of materials resources. Washington DC: Transportation Technology Support for Developing Countries. Compendium 6.
MLA
Transportation Research Board, . Investigation and development of materials resources. Washington DC: Transportation Technology Support for Developing Countries. Compendium 6. 1979.