TY  - BOOK
AU  - Spradley,L.Harold
TI  - Surveying and navigation for geophysical exploration
SN  - 0934634874
PY  - 1985///
CY  - Boston, Mass.
PB  - International Human Resources Development Corp.
KW  - Prospecting
KW  - Geophysical methods
KW  - Navigation
N1  - Includes bibliographical references (p. 281-283) and index
ER  -