000 00411nam a2200157Ia 4500
008 211211s9999||||xx |||||||||||||| ||und||
040 _cAKCL
082 _a507
_bRYL-R
100 _aRyle, Martin
245 0 _aResearch and Discovery
_c/ by Martin Ryle
260 _aEngland :
_bCentral Office of Information,
300 _a103 p.
650 _aNatural Sciences
654 _aResearch in Sciences
942 _cBK
999 _c6579
_d6579