000 00642nam a2200193Ia 4500
005 20250508153358.0
008 008 250505s9999 xx 000 0 eng d
037 _aTextual
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _a510.7, UNI
_qFEDL
100 _aBrown Kenneth E
_992816
245 0 _aQualifications and teaching loads of mathematics and science teachers in Maryland, New Jersey, and Virginia
260 _aWashington, USA
_bU.S. Government Printing Office
_c1959
300 _aviii,101p.
700 _a Obourn Ellsworth S
_9763830
942 _cTEXL
_h510.7, UNI
999 _c1342431
_d1342431