00331nam a2200121Ia 450000500170000000800410001704100080005808200150006610000170008124500610009826000410015930000090020020260720174700.0260720s1967    xx            000 0 und d  aeng  a371.4 KOCE  aKochhar, S K  aEducational and vocational guidance in secondary schools  aNew DelhibSterling Publishersc1967  a118p