00254nam a2200109Ia 4500008004100000040001200041082001400053100001900067245002200086260002800108300000800136200103s9999||||xx |||||||||||||| ||und||  aIMU-MPC  aColumn-62  aTirrell, H. F. 0aPictorial Drawing  bMacmillan, Londonc1948  a207