Soil survey of the San Fernando Valley area, California /

U.S. Department of Agriculture, Bureau of Soils in cooperation with the University of California Agricultural Experiment Station.

Reconnoissance soil survey of the lower San Joaquin Valley, California /

At head of title: U.S. Department of Agriculture, Bureau of Soils.

Estudio histórico sobre San Luis Potosí,

Photocopy.

Soil survey of the San Luis Obispo area, California /

Cover title.

The Quijotoa Valley Project /

Mode of access: Internet.

Designers' operating criteria : McPhee Powerplant, Dolores Project, Colorado.

"January 1990."