@book{131,
	author = {Plejanov, Georgi Valentinovich, 1856-1918},
	title = {Las cuestiones fundamentales del marxismo},
	publisher = {Editorial Claridad},
	year = {[s.f.]},
	series = {Colección claridad: manuales de cultura socialista},
	address = {Buenos Aires},
	url = {https://www.google.com.ec/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB0QFjAA&url=http%3A%2F%2Fwww.bcn.cl%2Fobtienearchivo%3Fid%3Ddocumentos%2F10221.1%2F13548%2F1%2F197581.pdf&ei=Bm2IVcyHLsa0sASlmYKwCw&usg=AFQjCNEuPmHIHCDrBIK8_9lMYNzmnuW1BQ&bvm=bv.96339352,d.cWc}
}