APA aipamena

Dowling, K. N. (2008). SAP® project system handbook. New York: McGraw Hill.

Chicago Style aipamena

Dowling, Kieron N. SAP® Project System Handbook. New York: McGraw Hill, 2008.

MLA aipamena

Dowling, Kieron N. SAP® Project System Handbook. New York: McGraw Hill, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.