TY  - BOOK
TI  - Sapiens: a brief history of humankind 
SN  - 978-0-99-59008-8
U1  - 569.98 2015
CY  - London
PB  - Vintage
N1  - the cognitive revolution, 
the agricultural revolution,
 the unification of humankind, 
the scientific revolution
ER  -