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101 0 $aeng
105   $aa-------001yy
200 1 $aIntroduction to gas lasers$epopulation inversion mechanisms$ewith emphasis on selective excitation processes$fColin S. Willett
210   $aOxford$cPergamon Press$dc1974
215   $a528 p.$cill.$d26 cm
225 1 $aInternational series of monographs in natural philosophy$v67
610 0 $aGas laser
676   $a621.366
700  1$aWillett,$bColin Sidney
801  0$aIT$bUNINA$gRICA$2UNIMARC
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952   $a10 B III 94$b8891$fDINEL
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