Maths and statistics for accounting and business studies / Gordon Bancroft and George O'Sullivan. Bancroft, Gordon. O'Sullivan, George. Commercial statistics. Business mathematics. HF1017 .B29 1988 519.5 19 BAM Includes index. Bibliography: p. 288-289. London ; New York : McGraw-Hill, c1988. c1988. 1988 Text xi, 294 p. : eng