00466nam a2200181Ia 4500 5521 Ost 20260507154859.0 251113s9999||||xx |||||||||||||| ||eng|| nitttr eng 526.9 A52P Allan, A. L. Practical field surveying and computations / Allan, A. L., Hollwey, J. R., Maynes, J. H. B. Hollwey, J. R. Maynes, J. H. B. BK 5416 5416 0 0 0 0 NITTTR NITTTR 2026-05-07 0 526.9 A52P 5965 2026-05-07 15:48:59 2026-05-07 BK