Text ( visual ) : unmediated Leonardo da Vinci on the movement of the heart and blood / by K.D. Keele ; with a foreward by Charles Singer. -- London : Harvey & Blythe , 1952. -- xviii, 142 p., [69] p. of plates. : ill. ; 25cm. -- Includes bibliographical references (p. 129) and index. -- (BA63830516) ; https://ci.nii.ac.jp/ncid/BA63830516 Author Heading(s): Keele, Kenneth D. (Kenneth David) ; Singer, Charles Joseph. -- Classification(s): DC18 : 611.1