@book {johnson_hugues-adrien_1988,
	title = {Hugues-Adrien Joly garde du Cabinet des Estampes de la Biblioth{\`e}que nationale. Lettres {\`a} Karl Henrich von Heinecken, 1772-1789},
	year = {1988},
	publisher = {Biblioth{\`e}que nationale},
	organization = {Biblioth{\`e}que nationale},
	address = {Paris},
	author = {William McAllister Johnson}
}
