Dyfyniad APA

(1992). Webster's 21st century: Complete guide to speech, style and grammar. T. Nelson.

Dyfyniad Arddull Chicago

Webster's 21st Century: Complete Guide to Speech, Style and Grammar. Nashville: T. Nelson, 1992.

Dyfyniad MLA

Webster's 21st Century: Complete Guide to Speech, Style and Grammar. T. Nelson, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.