00630nam a2200217Ia 450000100060000000300050000600500170001100800410002801000150006902000150008405000200009908200150011910000320013424500580016625000110022426000520023530000310028750400300031865000220034865000420037017550BIBL20160527185220.0721103c19731959ctua     b    00100 eng    a 72009829   a08371648341 aHM253b.J4 1973  a301.18/02810aJennings, Helen Hall2Local10aSociometry in group relationsba manual for teachers.  a2d ed.0 aWestport, Conn.bGreenwood Pressc[1973, c1959]  axi, 105 p.billus.c23 cm.  aBibliography: p. 100-102. 0aSociometry2Local 0aPersonnel service in education2Local