APA Style

S, D, ,, W. (1981). INFORMATION PROCESSING SYSTEMS SECOND EDITION . united states of america: ADDISON-WESLEY PUBLIHING COMPANY, INC..

MLA Style

S, DAVIS, ,, WILLIAM.. "INFORMATION PROCESSING SYSTEMS SECOND EDITION". united states of america: ADDISON-WESLEY PUBLIHING COMPANY, INC., 1981. .