TY  - BOOK
AU  - Eric Ries 
TI  - The Lean Start-up : How Constant Innovation Creates Radically Successful Businesses 
SN  - 9780670921607
U1  - 658.11 RIE 
PY  - 2011///
CY  - UK
PB  - Penguin Random House 
KW  - General Books
ER  -