00311nam a2200109Ia 4500008004100000020001800041082001500059100001500074245004900089260005500138300000800193190710s9999    xx            000 0 und d  a81-8329-246-7  a910.72 H21  aHar Prasad 0aResearch methods and techniques in geography  aNew DelhibShree Publishers and Distributorsc2008  a243