000			00340nam a2200145Ia 4500
008			150614s9999 xx 000 0 und d
082			_a519.5 ZEH-I
100			_aZEHNA PETER W.
245			_aINDRODUCTORY STATISTICS
250			_a4
260			_c1997
300			_a0
650			_aINDRODUCTORY STATISTICS ZEHNA PETER W.
942			_cREF
999			_c7775 _d7775