00311nam a2200097Ia 4500008004100000082001800041100002500059245009500084260002600179300000800205140113s9999    xx            000 0 und d  a712:(02)   L7  a"Christiansen, M.I."  aPark Planning handbook : fundamentals of physical planning for parks and recreation areas.  a1977bWileycNew York  a413