Etter, D.M. The Student Edition of LOTUS 1-2-3 for Engineers : Release 2.3 / D. M. Etter. -. - Massachusetts : Benjamin/Cummings, 1992. -. - Ixi, 230, R-206 p. : ill. ; 22 cm + 5 electronic flexible disc Includes bibliographical references ISBN: 0-201-91335-6 Subjects--Topical Terms: Programming