00534cam a2200181 a 45000010008000000030008000080050017000160080041000330350012000740400025000860820016001111000034001272450065001612600044002263000034002705040030003046500018003342479030BD-DhUL20160510150342.0690408s1969    mdua     b    001 0 eng    a2479030  aLCbengcLCdBD-DhUL  a330.18bFIC1 aFisher, Walter Dummer,d1916-10aClustering and aggregation in economics /cWalter D. Fisher.  aBaltimore :bJohns Hopkins Pressc1969.  axii, 195 p. :bill. ;c24 cm.  aBibliography: p. 139-147. 0aEconometrics.