Mather, R. S., & Angus-Leppan, P. V. (1974). Proceedings of Symposium on the Earth's Gravitational Field and Secular Variations in Position. Sydney: School of Surveying, University of New South Wales.
Παραπομπή Chicago StyleMather, Ronald S., and Peter Vincent Angus-Leppan. Proceedings of Symposium On the Earth's Gravitational Field and Secular Variations in Position. Sydney: School of Surveying, University of New South Wales, 1974.
Παραπομπή MLAMather, Ronald S., and Peter Vincent Angus-Leppan. Proceedings of Symposium On the Earth's Gravitational Field and Secular Variations in Position. Sydney: School of Surveying, University of New South Wales, 1974.
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