000 00309nam a2200121Ia 4500
100 _aUnited Nations
942 _cBK
654 _a
245 _aGuide for lecturers and teachers
260 _aUnited Nations
_bDepartment of Public Information United Nation
_c1947
082 _a341.13
300 _bHb
_axii,163
999 _c422893
_d422893
041 _aeng