1 Exhibit 12(a) Wallace Computer Services, Inc. Ratio of Earnings to Fixed Charges Nine Nine Months Months Twelve months ended July, 31 Ended Ended 1997 1996 1995 1994 1993 4/30/98 4/30/97 ---------------------------------------------------------------------------------------- (a) Consolidated Net Income (before extraordinary) 81,282 72,999 55,297 47,268 41,170 59,987 62,002 (b) Income Taxes 53,069 45,479 32,163 26,588 21,209 39,702 40,480 (c) Interest Expense 2,619 1,311 1,209 1,325 1,196 15,817 1,744 (d) Rent Expense 4,200 3,619 3,571 3,519 3,803 5,259 3,173 (e) Capitalized Interest 1,321 1,406 1,508 986 787 940 1,183 ---------------------------------------------------------------------------------------- Ratio of earnings to fixed charges 26.2 31.2 23.4 22.2 20.2 6.4 26.7 ======================================================================================== Calculation: [(a) + (b) + (c) + ((1/3) x (d)) + (e)] / [(c) + ((1/3) x (d)) + (e)]