TY  - GEN
AU  - Vallentin,Antonina
AU  - Dickes,Ernest Walter
TI  - Leonardo da Vinci: the tragic pursuit of perfection
PY  - 1952///
CY  - New York
PB  - The Viking Press
KW  - Leonardo,
N1  - "First published in November 1938."; "Translated from the German manuscript."; Bibliography: p. 547-551
ER  -