00585cam a2200193 a 4500001000700000003000800007005001700015008004100032035001100073040002100084082001500105100002700120245008000147260003300227300003400260504004100294650002500335700003100360754897BD-DhUL20160511124307.0810803s1962    xxua     b    000 0 eng    a754897  cBD-DhULdBD-DhUL04a330.7bFER1 aFerber, Robert,d1922-10aResearch methods in economics and business /cRobert Ferber, P.J. Verdoorn.  aNew York :bMcMillan,c1962.  axiv, 573 p. :bill. ;c24 cm.  aIncludes bibliographical references. 0aEconomicsxResearch.1 aVerdoorn, Petrus Johannes.