TY  - BOOK
AU  - Petroski,Henry
TI  - The pencil: a history of design and circumstance 
SN  - 0394574222
AV  - TS1268 .P47 1990
U1  - 674/.88 20
PY  - 1990///
CY  - New York
PB  - Knopf, Distributed by Random House
KW  - Pencils
KW  - History
N1  - Includes index; Bibliography: p. 385-407
ER  -