Statistical Methods in Educational and Psychological Research - James E. Wert; Charles O. Neidt J. Stanley Ahmann (New York Appleton Century Crofts Inc, 1954)
James E. Wert; Charles O. Neidt & J. Stanley Ahmann: Statistical Methods in Educational and Psychological Research. New York. Appleton Century Crofts Inc, 1954.--(519.502415WER)
ENGLISH