00294nam a2200121Ia 450000500170000000800410001704100080005808200150006610000150008124500250009626000420012130000090016320260720174609.0260720s2006    xx            000 0 und d  aeng  a304.6 SINP  aSingh, U K  aPopulation education  aNew DelhibDiscovery Publishersc2006  a299p