TY  - BOOK
AU  - Hart,Michael
TI  - Price/Cost Indexes from 1875 to 1989; Estimated to 2010
AV  - HG 
PY  - 1993///
PB  - Project Gutenberg
KW  - Cost and standard of living
N1  - Originally published as a column entitled: The Rate of Change of the Rate of Change, in the Electronic Journal of Virtual Culture; Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/88
ER  -