00334nam a2200121Ia 450000500170000000800410001702000180005808200110007610000180008724500460010526000330015165000280018420250107154404.0241216s9999||||xx |||||||||||||| ||und||  a0 258 96868 0  a526.99  aIngham, A. E. 0aHydrography for the surveyor and engineer  aNew York,bGranada pubc1974  aHydrographic surveying.