Clark, D., Jackson, J. E. 1., Jackson, J. E. 1., & Jackson, J. E. (1974). Plane and geodetic surveying (6th ed.). London: Constable.
Παραπομπή Chicago StyleClark, David, Jean E. 1943- Jackson, J. E. 1905- Jackson, and J. E. Jackson. Plane and Geodetic Surveying. 6th ed. London: Constable, 1974.
Παραπομπή MLAClark, David, Jean E. 1943- Jackson, J. E. 1905- Jackson, and J. E. Jackson. Plane and Geodetic Surveying. 6th ed. London: Constable, 1974.
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