Freund, J., Perles, B., Williams, F. Elementary Business Statistics. New Jersey: Prentice-Hall Intern. Edit., 1988 XIII, 738 с. : с ил. 0-13-253170-4.
Freund, J., Perles, B., Williams, F. Elementary Business Statistics. New Jersey: Prentice-Hall Intern. Edit., 1988 XIII, 738 с. : с ил. 0-13-253170-4.
Freund, J., Perles, B., Williams, F. (1988) Elementary Business Statistics, New Jersey: Prentice-Hall Intern. Edit. XIII, 738 с. : с ил. 0-13-253170-4.
Freund, J., Perles, B., & Williams, F. (1988). Elementary Business Statistics. The Modern Approach. New Jersey: Prentice-Hall Intern. Edit., XIII, 738 с. : с ил.
Freund J, Perles B, Williams F. Elementary Business Statistics: The Modern Approach. New Jersey: Prentice-Hall Intern. Edit.; 1988. p. XIII, 738 с. : с ил. ISBN: 0-13-253170-4.