19 1 50 Garry D. Brown Additional Author mixed material John Weley & Sons 1977 AS.Philippakis Additional Author Leonard J. Kazmier Additional Author mixed material McGraw Hill 1987 a structured approacs Berry Marming Additional Author mixed material Random House 1984 Gerry C. Manning Additional Author mixed material Random House 1984 Gary S. Popkin Additional Author mixed material Kent Pub. 1986 Robert C. Nickerson Additional Author mixed material Little Brown 1984 Andreas S. Philippakis Additional Author Leonard J. Kazmier Additional Author mixed material International Student Ed. 1978 Andreas S.Philippakis\' Additional Author Leonard J.Kazmier Additional Author mixed material Grolier computer library 1978 Ray Martin Richards Additional Author mixed material S R A Inc. 1987 Daniel McCraken Additional Author Sahat M Pasaribu Additional Author mixed material Erlangga 1988 Ronald W Eaves Additional Author Don B Medley Additional Author mixed material South Western 1985 Charles R. Litecky Additional Author Gardon B. Davis Additional Author mixed material McGraw Hill 1987 A S Philipakis Additional Author Leonard J Kazmier Additional Author mixed material Mc Graw Hill 1981 Tyler Welburn Additional Author mixed material Maeffield Pub 1986 J Patrick Fenton Additional Author Brian K Williams Additional Author mixed material Mosby College Pub. 1988 Nancy Stern Additional Author Robert A. Stern Additional Author mixed material John Wiley 1970 Robert T Graner Additional Author mixed material Prentice Hall 1983 Robert T Grauer Additional Author mixed material Prentice Hall 1983 Ruth Ashley Additional Author Judi N. Fernandez Additional Author mixed material John Wiley & Sons 1987