Kakkuri, J. (1973). Stellar triangulation with balloon-borne beacons. Finnish Geodetic Institute.
Cita Chicago Style (17a ed.)Kakkuri, Juhani. Stellar Triangulation with Balloon-borne Beacons. Helsinki: Finnish Geodetic Institute, 1973.
Cita MLA (9a ed.)Kakkuri, Juhani. Stellar Triangulation with Balloon-borne Beacons. Finnish Geodetic Institute, 1973.
Precaución: Estas citas no son 100% exactas.