"Prepared on behalf of the National Science Foundation." "Seismic Engineering Branch, U.S. Geological Survey"--P. iii. "January 1981." Microfiche. [Denver, Colo. : U.S. Geological Survey, 1981?]. 2 microfiches ; 11 x 15 cm.
Series:
Open-file report ; 81-664
OCLC:
(OCoLC)8510577
Locations:
OVUX522 -- University of Iowa Libraries (Iowa City)
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.