APA引文

Hayen Roger. (2006). SAP R/3 Enterprise Software(photocopy). American: McGraw -Hill.

Trích dẫn kiểu Chicago

Hayen Roger. SAP R/3 Enterprise Software(photocopy). American: McGraw -Hill, 2006.

MLA引文

Hayen Roger. SAP R/3 Enterprise Software(photocopy). American: McGraw -Hill, 2006.

警告：這些引文格式不一定是100％准確.