00490nam a2200157Ia 450000500170000000800410001702000180005804100080007608200170008410000200010124500580012125000080017926000400018730000160022765000890024320191107150719.0190710s9999    xx            000 0 und d  a0 205 05558 3  aeng  a371.46 258 H  aGazda, George M 0aHuman relation development b: a manual for educators  a2nd  aBostonb:Allyn and Bacon Inc,c1978  aviii, 232p.  aEducational sociology a| Personnel service in education a| Interpersonal relations