Dyfyniad APA
Cassidy, A., & Cassidy, D. (2010). A practical guide to reducing IT costs. J. Ross Pub..
Dyfyniad Arddull Chicago
Cassidy, Anita, and Dan Cassidy. A Practical Guide to Reducing IT Costs. Ft. Lauderdale, Fla.: J. Ross Pub., 2010.
Dyfyniad MLA
Cassidy, Anita, and Dan Cassidy. A Practical Guide to Reducing IT Costs. J. Ross Pub., 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.