APA

Edwards P., . (1993). Systems analysis & design. New York: Mitchell McGraw-Hill.

Chicago

Edwards Perry, . 1993. Systems analysis & design. New York: Mitchell McGraw-Hill.

Harvard

Edwards P., . (1993). Systems analysis & design. New York: Mitchell McGraw-Hill.

MLA

Edwards Perry, . Systems analysis & design. New York: Mitchell McGraw-Hill. 1993.