APA

Easteal C., Davies G. & Open University. (1989). Software engineering. \London: McGraw-Hill.

Chicago

Easteal Charles, Davies Gordon and Open University. 1989. Software engineering. \London: McGraw-Hill.

Harvard

Easteal C., Davies G. and Open University. (1989). Software engineering. \London: McGraw-Hill.

MLA

Easteal Charles, Davies Gordon and Open University. Software engineering. \London: McGraw-Hill. 1989.