Agricultural soil maps status, July 1957 a revision of Bulletin 22 (1948).

Agricultural soil maps status, July 1957 a revision of Bulletin 22 (1948).

Bibliografische gegevens
Coauteur: National Research Council (U.S.). Highway Research Board
Formaat: Boek
Taal:English
Gepubliceerd in: Washington, D.C. Highway Research Board 1957.
Reeks:Highway Research Board Bulletin 22-R.
Onderwerpen:
Soils > United States > Maps.
Soil-surveys > United States.