Transactions of the American philosophical society. Held at Philadelphia for promoting useful knowledge. New series – volume 42, part three. 1952. Three Revolutionary architects, Boullee, Ledoux and Lequeu. By a Emil Kaufman. October 1952.
Transactions of the American philosophical society. Held at Philadelphia for promoting useful knowledge. New series – volume 42, part three. 1952. Three Revolutionary architects, Boullee, Ledoux and Lequeu. By a Emil Kaufman. October 1952.