Ferber, Robert
Research methods in economics and business / Robert Ferber and P. J. Verdoorn - New York : Macmillan, 1962. - 573 p. : ill. ; 24 cm.
Includes index and bibliographycal referendces
Economics
330.7 / FER
Research methods in economics and business / Robert Ferber and P. J. Verdoorn - New York : Macmillan, 1962. - 573 p. : ill. ; 24 cm.
Includes index and bibliographycal referendces
Economics
330.7 / FER