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Engineering geology of Washington, D.C. : Washington, D.C. to Greenbelt, Maryland, July 14, 1989 / leader, James V. O'Connor ; associate leader, Stephen F. Obermeier. by O'Connor, James V.
Published 1989Call Number: Loading…Full text (Wentworth users only)
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2
Geological exploration of the southern Rock Creek Valley in DC : Washington, D.C., July 13, 1989 / leader, James V. O'Connor. by O'Connor, James V.
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Electronic Conference Proceeding eBook -
3
Exploration of Rock Creek Park-North : Washington, D.C., July 17, 1989 / leader, James V. O'Connor. by O'Connor, James V.
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Electronic Conference Proceeding eBook