Ogden, R. Lynn. “DAHL, ESPESSET, LAFRANCE and RUDDELL, La Ville De Québec, 1800–1850 : Un Inventaire De Cartes Et Plans”. Archivaria, vol. 2, Jan. 1976, pp. 119-20, https://www.archivaria.ca/index.php/archivaria/article/view/10458.