Measures of credit risk and experience / [by] Edgar R. Fiedler assisted by Maude R. Pech. Fiedler, Edgar R. Pech, Maude R., Credit United States. HG3729.U5 F44 332.7 FIM Includes index and biblographycal references New York : National Bureau of Economic Research, 1971. 1971. 1971 Text 357 p. ; eng National Bureau of Economic Research. General series 95 General series (National Bureau of Economic Research) ; no. 95. United States.