a sketch of his life and works /
by May Alden Ward.
Ward, M. Alden. (1891). Petrarch: a sketch of his life and works. Boston: Roberts Bros..
Ward, May Alden, 1853-1918. Petrarch: a Sketch of His Life And Works. Boston: Roberts Bros., 1891.
Warning: These citations may not always be complete (especially for serials).