TY  - BOOK
AU  - Ries ,Eric
TI  - The Lean start up : How Constant Innovation Creates Radically Successful Busness
SN  - 9780670921607
U1  - 658.11 RIE 
PY  - 2011///
CY  - Newyork
PB  - Penguin
KW  - PHILOSOPHY
ER  -