Bivins, T. H. (1992). Fundamentals of successful newsletters: Everything you need to write, design, and publish more effective newsletters. NTC Business Books.
Dyfyniad Arddull ChicagoBivins, Thomas H. Fundamentals of Successful Newsletters: Everything You Need to Write, Design, and Publish More Effective Newsletters. Lincolnwood, Ill: NTC Business Books, 1992.
Dyfyniad MLABivins, Thomas H. Fundamentals of Successful Newsletters: Everything You Need to Write, Design, and Publish More Effective Newsletters. NTC Business Books, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.