Residual correction applied to magnetic survey of west Texas ; Residual correction applied to magnetic survey of west central Texas.

Bibliographic Details
Format: Map
Language:English
Published: [Texas?] : [publisher not identified], [1951]
Subjects:
Description
Item Description:Relief shown by contours.
Contour interval = 10 gammas.
Blueline print.
Physical Description:1 map : photocopy ; on sheet 240 x 106 cm