TY - BOOK AU - Jackson,J E. TI - Sphere, spheroid and projections for surveyors T2 - Aspects of modern land surveying SN - 063201867 AV - TA549 .J33 1987 PY - 1987/// CY - Oxford PB - BSP Profesional BKS KW - Surveying KW - Mathematics KW - Trigonometry KW - Spherical ER -