00264nam a2200097Ia 4500008004100000082001500041100001600056245005400072260002900126300001100155240817s9999    xx            000 0 und d  a541.22 B98  aBurns, R.G. 0aMineralogical application of crysta: field theory  c1970a Londanb Cambrige  a224 p.