000 nam a22 7a 4500
999 _c55263
_d55263
003 EG-Heliopolis
005 20200119105021.0
008 190123s1974 nyua g |||| 000 0 eng d
020 _a071721205X
040 _aEG-Heliopolis
_bara
_cEG-Heliopolis
041 _aara
082 0 4 _221
_a500 / B
245 2 0 _aThe Book of popular science /
_n5
250 _aط.1.
260 _aNew York :
_bGrolier ،
_c1974.
300 _aPC : P 426 ؛
_c26 CM.
650 0 4 _aTechnology
650 0 4 _aNatural History