The elements of drawing;
in three letters to beginners.
By John Ruskin ... with illustrations, drawn by the author.
Ruskin, J. (1857). The elements of drawing: in three letters to beginners. London: Smith, Elder, & co..
Ruskin, John, 1819-1900. The Elements of Drawing: In Three Letters to Beginners. London: Smith, Elder, & co., 1857.
Warning: These citations may not always be complete (especially for serials).