TY  - BOOK
AU  - Hadamard,Jacques
TI  - Essay on the psychology of invention in the mathematical field
PY  - 1954///, c1945]
CY  - [New York]
PB  - Dover Publications
KW  - Mathematics
KW  - Philosophy
KW  - Psychology
KW  - Inventions
N1  - "An unaltered and unabridged reprint of the first edition."
ER  -