00421nam a22001577a 4500008004500000020001800045082001800063100001800081245004500099250001300144260003100157300001600188650001300204650002400217650002200241230509b     2023      ||||| |||| 00| 0 eng d  a9780080971704  a623.8884bCOC  aCockcroft A N  aA Guide to the Collision Avoidance Rules  a7th, ed.  aNew Delhi bElsevierc2023  axiii, 183p.  aGeneral   aSteering and shapes  aLights and shapes