...Professional paper ; 1072. QE808.S67 564/.3/097 OCLC 3705667 79-16924 I 19.16:1077 Wynn, Jeffrey C. Electromagnetic coupling with a collinear array on...a twolayer anisotropic earth / by Jeffrey C. Wynn. — [Reston, Va.] : Dept. of the Interior, Geological Survey ; Washington : for sale by the Supt. of...