Van Sickle, J. (2008). GPS for land surveyors (Third edition.). CRC Press.
Cita Chicago (17th ed.)Van Sickle, Jan. GPS for Land Surveyors. Third edition. Boca Raton, FL: CRC Press, 2008.
Cita MLA (9th ed.)Van Sickle, Jan. GPS for Land Surveyors. Third edition. CRC Press, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.