TY  - BOOK
AU  - Petroski,Henry
TI  - The evolution of useful things
SN  - 0679740392 (pbk.) :
PY  - 1994///
CY  - New York
PB  - Vintage Books
KW  - Inventions
KW  - Patents
N1  - Includes bibliographical references (p. 265-273) and index; Originally published; New York : A. Knopf, 1992
ER  -