Hardy, P. (2022). ABAP to the future (4th edition, updated and revised.). Rheinwerk Publishing.
Chicago Style (17th ed.) CitationHardy, Paul. ABAP to the Future. 4th edition, updated and revised. Boston, MA: Rheinwerk Publishing, 2022.
MLA (9th ed.) CitationHardy, Paul. ABAP to the Future. 4th edition, updated and revised. Rheinwerk Publishing, 2022.
Warning: These citations may not always be 100% accurate.