Investigation and development of materials resources

Bok · Engelsk · 1979
Flere språk: Fransk, Spansk

Utgitt	Washington, D.C. : National Academy of Sciences , 1979
Omfang	xxiv, 220 s. : ill.
Emner	Road materials - Addresses, essays, lectures - Developing countries Roads - Surveying Addresses, essays, lectures - Developing countries
ISBN	0309028213