TY  - BOOK
AU  - Kempe,A.B.
TI  - How to Draw a Straight Line: A Lecture on Linkages
AV  - TJ 
PY  - 2008///
PB  - Project Gutenberg
KW  - Straight-line mechanisms
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/25155
ER  -