1. Teatcher's manual
:SOUTHAM, James L. - FREUND, John E. - WILLIAMS, Frank J. Teatcher's manual : elementary business statistics the modern approach third edition. Englewood Cliffs : Prentice-Hall, Inc., 1977. 143 s. ISBN 0-13-253070-8. [Copy count : 1, currently available 1, at library only 0]