00521nam a2200169Ia 4500003000400000005001700004008004000021040000700061041001200068082001600080100002000096245004300116260006100159300001200220520009700232700002200329OSt20250701113015.0210210b1968   xxu||||| |||| 00| 0 eng d  cAL  aEnglish  a300.72 YOUS  aPauline V Young  aScientific social surveys and research  aNew Delhi.bPrentice-Hall of India Private Limitedc1968  axvi,576  aAn introduction to the background,content,methods,principles and analysis of social studies.  aSchmid, Calvin F