SpringerLink (Online service) & Marti, U. (2014). Gravity, Geoid and Height Systems: Proceedings of the IAG Symposium GGHS2012, October 9-12, 2012, Venice, Italy. Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και Urs Marti. Gravity, Geoid and Height Systems: Proceedings of the IAG Symposium GGHS2012, October 9-12, 2012, Venice, Italy. Cham: Springer International Publishing : Imprint: Springer, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και Urs Marti. Gravity, Geoid and Height Systems: Proceedings of the IAG Symposium GGHS2012, October 9-12, 2012, Venice, Italy. Springer International Publishing : Imprint: Springer, 2014.
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