00243nam a2200109Ia 4500008004100000041000800041082002200049100001700071245002800088260000900116300000800125211209s1978    xx            000 0 und d  aeng  a631.7 JOG N78 JOG  aJOGLEKAR G D  aIRRIGATION ENGINEERING   c1978  a510