@book{109774,
	author = {Anonymous and Cranogwen,},
	title = {Y ddwy chwaer: Ffeithiau hanesyddol},
	publisher = {Project Gutenberg,},
	year = {2022},
	address = {Salt Lake City, UT :},
	note = {Release date is 2022-09-11},
	url = {https://www.gutenberg.org/ebooks/68973}
}