@book{UBHD-1763477, author={Clark, Kenneth}, title={Leonardo da Vinci}, subtitle={an account of his development as an artist. The Ryerson lectures delivered Oct. and Nov. 1936 at the School of the Fine Arts, Yale Univ., New Haven, Conn.}, edition={2. ed.}, publisher={Univ. Pr.}, address={Cambridge}, year={1952}, pages={XVI, 203 S.}, language={eng}, library={UB [Signatur: C 7021-16-10]}, }