000			00400nam a2200145Ia 4500
008			211217s9999 xx 000 0 und d
020			_a0-04-510049-7
040			_cJayakar Knowledge Resource Centre
100			_aGiacagllia, G E O
245		0	_aPurbation methods in non-linear systems
250			_a1st
260			_bGeorge Allen and Unwin _aLondon _c1972
300			_aviii,369p p.
942			_c1
999			_c125397 _d125397