@book{112821,
	author = {Pannekoek, Anton, and Weiser, Nathan},
	title = {Marxism and Darwinism},
	publisher = {Project Gutenberg,},
	year = {2023},
	address = {Salt Lake City, UT :},
	note = {Release date is 2023-11-11},
	url = {https://archive.org/details/marxismdarwinism00pannuoft/page/n5/mode/2up}
}