Dyfyniad APA

Hart, M. Project Gutenberg Newsletters 1999 Thirteen Letters: December 1998 to December 1999.

Dyfyniad Arddull Chicago

Hart, Michael. Project Gutenberg Newsletters 1999 Thirteen Letters: December 1998 to December 1999.

Dyfyniad MLA

Hart, Michael. Project Gutenberg Newsletters 1999 Thirteen Letters: December 1998 to December 1999.

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