ebrary, Inc, & King, W. R. (2009). Planning for information systems. M. E. Sharpe.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, agus William Richard King. Planning for Information Systems. Armonk, N.Y.: M. E. Sharpe, 2009.
Lua MLA (9ú heag.)ebrary, Inc, agus William Richard King. Planning for Information Systems. M. E. Sharpe, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.