Spradley, L. H. (1985). Surveying and navigation for geophysical exploration. International Human Resources Development Corp..
Chicago Style (17. basım) AtıfSpradley, L. Harold. Surveying and Navigation for Geophysical Exploration. Boston: International Human Resources Development Corp., 1985.
MLA (8th ed.) AtıfSpradley, L. Harold. Surveying and Navigation for Geophysical Exploration. International Human Resources Development Corp., 1985.
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