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Quality of water, Colorado River Basin, progress report
Description based on: Number 4 (Jan. 1969).
Latest issue consulted: Number 16 (Jan. 1993).
Some v. distributed to depository libraries in microfiche.
Vols. for <1993-> issued by the Bureau of Reclamation, U.S. Dept. of the Interior.
Bureau of Reclamation, 1849 C St., NW, Washington, DC 20240