APA

Systems Analysis and Design: A Foundation for the 1980's, Cotterman W. W., Couger J. D., Enger N. L., Harold F., Institute for Certification of Computer Professionals, IEEE Computer Society & Association for Computing Machinery. (1981). Systems analysis and design. New York: North Holland.

Chicago

Systems Analysis and Design: A Foundation for the 1980's, Cotterman William W, Couger J Daniel, Enger Norman L, Harold Frederick, Institute for Certification of Computer Professionals, IEEE Computer Society and Association for Computing Machinery. 1981. Systems analysis and design. New York: North Holland.

Harvard

Systems Analysis and Design: A Foundation for the 1980's, Cotterman W. W., Couger J. D., Enger N. L., Harold F., Institute for Certification of Computer Professionals, IEEE Computer Society and Association for Computing Machinery. (1981). Systems analysis and design. New York: North Holland.

MLA

Systems Analysis and Design: A Foundation for the 1980's, Cotterman William W, Couger J Daniel, Enger Norman L, Harold Frederick, Institute for Certification of Computer Professionals, IEEE Computer Society and Association for Computing Machinery. Systems analysis and design. New York: North Holland. 1981.