Leick, A. (2004). GPS satellite surveying (3rd ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Leick, Alfred. GPS Satellite Surveying. 3rd ed. Hoboken, N.J: Wiley, 2004.
Lua MLA (9ú heag.)Leick, Alfred. GPS Satellite Surveying. 3rd ed. Wiley, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.