APA

Fu (Biao); Fu (Henry), . (2007). SAP BW: A Step-by-Step Guide. : .

Chicago

Fu (Biao); Fu (Henry), . 2007. SAP BW: A Step-by-Step Guide. : .

Harvard

Fu (Biao); Fu (Henry), . (2007). SAP BW: A Step-by-Step Guide. : .

MLA

Fu (Biao); Fu (Henry), . SAP BW: A Step-by-Step Guide. : . 2007.