TY  - BOOK
AU  - Kropotkin, Peter
TI  - Mutual Aid: A Factor of Evolution 
SN  - 978-160680071-3
U1  - 301 
PY  - 2008///
CY  - Estados Unidos 
PB  -  Forgotten Books
N1  - Introduction - Mutual Aid Among Animals - Mutual Aid Among Savages - Mutual Aid Among the Barbarians - Mutual Aid in the Mediaeval City - Mutual Aid Amongst Ourselves - Conclusion - EndNotesÌ
ER  -