00385nam a2200133Ia 4500008004100000041000800041082002200049100001300071245003000084260000900114300000800123952010300131999001700234211209s1966    xx            000 0 und d  aeng  a623.893 3 N66 JOH  aJOHN S H  aRADAR AIDS TO NAVIGATION   c1966  a389  00104070aRITbRITd2021-12-31l0o623.893 3 N66 JOHp15882r2021-12-31 00:00:00w2021-12-31yBK  c15882d15882