Παραπομπή APA

Lawlor, W. (2004). Common SAP R/3 functions manual. Springer.

Παραπομπή Chicago Style

Lawlor, William. Common SAP R/3 Functions Manual. New Delhi: Springer, 2004.

Παραπομπή MLA

Lawlor, William. Common SAP R/3 Functions Manual. Springer, 2004.