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040 _aMPL
_cMPL
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041 0 _aara
043 _aam-us--
082 0 4 _a503
_221
100 1 _astaff of national college of education evanston , illinois
245 1 0 _a21 aa my
_cevanston , illinois
250 _a1st ed
264 0 _aunites stste
_bchildrens press , inc
_c1963
300 _a95 pages
_b24c.m
336 _aنص
337 _aبدون وسيط
338 _aكتاب
490 0 _ayoung peoples science encyclopedia
596 _a15
999 _c55952
_d55952