Geodetically derived strain across the northern New Madrid seismic zone / 
by Ricard A. Snay... [et.al]. Seismic hazard mitigation in the Central United States : the role of the States /  by Robert B. Olshansky 
 - Washington :  U.S. Government Printing Office,  1994 
 - 16 p. :  ill. ;  27 cm. 
 - U.S. Geological Survey profesional paper ;  1538-F-G .