TY  - BOOK
AU  - Leonardo,
AU  - Richter,Irma A.
TI  - The notebooks of Leonardo da Vinci
SN  - 0192815385 
PY  - 1990///
CY  - Oxford, New York
PB  - Oxford University Press
KW  - Leonardo,
N1  - Includes bibliographical references and index
ER  -