@book{100039,
	author = {Martínez Sierra, Gregorio, and Martínez Sierra, María,},
	title = {La humilde verdad / },
	editor = {Imp. Clásica Española)},
	publisher = {Renacimiento, },
	year = {1917 (},
	address = {Madrid : },
	edition = {3ª ed.},
	url = {https://archive.org/details/lahumildeverdad00mart/page/4/mode/2up}
}