@book{richards_tragic_2008,
	address = {Chicago},
	title = {The tragic sense of life: {Ernst} {Haeckel} and the struggle over evolutionary thought},
	isbn = {978-0-226-71214-7},
	shorttitle = {The tragic sense of life},
	publisher = {University of Chicago Press},
	author = {Richards, Robert J.},
	year = {2008},
	note = {OCLC: ocn173368350},
	keywords = {Biography, Biologists, Evolution (Biology), Germany, Haeckel, Ernst, History, Zoologists, pdf1},
}

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