@inbook {foucaud_extensions_1991,
	title = {Extensions et travaux de la Biblioth{\`e}que nationale (1800-1914)},
	booktitle = {Histoire des biblioth{\`e}ques fran{\c c}aises, 3. Les Biblioth{\`e}ques de la R{\'e}volution et du {XIXe} si{\`e}cle},
	year = {1991},
	pages = {328{\textendash}334},
	publisher = {Promodis - Ed. du Cercle de la librairie},
	organization = {Promodis - Ed. du Cercle de la librairie},
	address = {Paris},
	author = {Jean-Fran{\c c}ois Foucaud}
}
