@book{91364,
	author = {Verdugo, Francisco, and Fuensanta del Valle, Feliciano Ramírez de Arellano, marqués de la,},
	title = {Comentario del coronel Francisco Verdugo, de la guerra de Frisia, :},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-11-22},
	url = {https://www.gutenberg.org/ebooks/50526}
}