Trích dẫn APA

System develoment and operations. 3rd ed. Information technology promotion agency.

Trích dẫn kiểu Chicago

System Develoment and Operations. 3rd Ed. Information technology promotion agency.

Trích dẫn MLA

System Develoment and Operations. 3rd Ed. Information technology promotion agency.

Cảnh báo! Những trích dẫn này có thể không chính xác 100%.