APA (7th ed.) Citation

Barrett, D. (1996). SAP R/3 ABAP/4: Command reference. Que Corporation.

Chicago Style (17th ed.) Citation

Barrett, Dennis. SAP R/3 ABAP/4: Command Reference. Indianapolis: Que Corporation, 1996.

MLA (9th ed.) Citation

Barrett, Dennis. SAP R/3 ABAP/4: Command Reference. Que Corporation, 1996.

Warning: These citations may not always be 100% accurate.