@book{111177,
	author = {Bölsche, Wilhelm, and McCabe, Joseph,},
	title = {Haeckel},
	publisher = {Project Gutenberg,},
	year = {2023},
	address = {Salt Lake City, UT :},
	note = {Release date is 2023-04-05},
	url = {https://archive.org/details/haeckelhislifewo00bl/page/n7/mode/2up}
}